This is the full listing of all ships hit during March 1918. You can click on any of the links for further information on either ship, U-boat, commander or convoy.
| Date | U-boat | Commander | | Name of ship | Tons | Nat. |
| |
| 1 Mar 1918 | U 105 | Friedrich Strackerjan | | Penvearn | 3,710 |  | br |
| 1 Mar 1918 | U 19 | Johannes Spieß | | Calgarian | 12,515 |  | br |
| 1 Mar 1918 | U 19 | Johannes Spieß | | Thomas Collard | 215 |  | br |
| 1 Mar 1918 | U 55 | Wilhelm Werner | | Borga | 1,046 |  | br |
| 2 Mar 1918 | U 104 | Kurt Bernis | | Kenmare | 1,330 |  | br |
| 2 Mar 1918 | U 105 | Friedrich Strackerjan | | Carmelite | 2,583 |  | br |
| 2 Mar 1918 | U 22 | Hinrich Hermann Hashagen | | Stina | 1,136 |  | sw |
| 2 Mar 1918 | U 91 | Alfred von Glasenapp | | Bessy | 60 |  | br |
| 2 Mar 1918 | U 94 | Alfred Saalwächter | | Rockpool | 4,502 |  | br |
| 2 Mar 1918 | UB 53 | Robert Sprenger | | Euxeinos | 2,891 |  | gr |
| 2 Mar 1918 | UB 65 | Martin Schelle | | Havna | 1,150 |  | nw |
| 3 Mar 1918 | U 102 | Curt Beitzen | | Romeo | 1,730 |  | br |
| 3 Mar 1918 | U 60 | Franz Grünert | | Northfield | 2,099 |  | br |
| 4 Mar 1918 | U 110 | Karl Kroll | | Castle Eden | 1,949 |  | br |
| 4 Mar 1918 | U 155 | Erich Eckelmann | | Antioco Accame | 4,439 |  | it |
| 4 Mar 1918 | U 60 | Franz Grünert | | Quarnero | 3,237 |  | it |
| 4 Mar 1918 | U 92 | Max Bieler | | British Princess (d.) | 7,034 |  | br |
| 4 Mar 1918 | UB 80 | Max Viebeg | | Polkerris | 943 |  | fr |
| 4 Mar 1918 | UC 27 | Otto Gerke | | Clan Macpherson | 4,779 |  | br |
| 4 Mar 1918 | UC 74 | Hans Adalbert von der Lühe | | Clan Graham (d.) | 5,213 |  | br |
| 5 Mar 1918 | UB 30 | Wilhelm Rhein | | Clan Mackenzie (d.) | 6,544 |  | br |
| 5 Mar 1918 | UB 80 | Max Viebeg | | Uskmoor | 3,189 |  | br |
| 5 Mar 1918 | UC 4 | Ernst Berlin | | Coalgas | 2,257 |  | br |
| 5 Mar 1918 | UC 4 | Ernst Berlin | | Estrella | 1,740 |  | br |
| 5 Mar 1918 | UC 4 | Ernst Berlin | | Tusnastabb | 1,136 |  | nw |
| 5 Mar 1918 | UC 74 | Hans Adalbert von der Lühe | | Roxburgh | 4,630 |  | br |
| 5 Mar 1918 | UC 75 | Walter Schmitz | | Edouard Marie | 32 |  | be |
| 6 Mar 1918 | U 152 | Constantin Kolbe | | Elector | 134 |  | pt |
| 6 Mar 1918 | U 35 | Lothar von Arnauld de la Perière | | Daiten Maru | 4,555 |  | jp |
| 6 Mar 1918 | UB 53 | Robert Sprenger | | Kalgan | 1,862 |  | br |
| 7 Mar 1918 | U 110 | Karl Kroll | | Tarbetnesse | 3,018 |  | br |
| 7 Mar 1918 | U 110 | Karl Kroll | | Vitol | 2,639 |  | br |
| 7 Mar 1918 | U 152 | Constantin Kolbe | | Luigi | 3,549 |  | it |
| 7 Mar 1918 | U 35 | Lothar von Arnauld de la Perière | | Begona No.4 | 1,850 |  | sp |
| 7 Mar 1918 | U 55 | Wilhelm Werner | | Brise | 160 |  | fr |
| 7 Mar 1918 | U 55 | Wilhelm Werner | | Saint Georges | 102 |  | fr |
| 7 Mar 1918 | U 55 | Wilhelm Werner | | Saint Joseph | 434 |  | fr |
| 7 Mar 1918 | UB 30 | Wilhelm Rhein | | Braatt Ii | 1,834 |  | nw |
| 7 Mar 1918 | UB 80 | Max Viebeg | | Martha | 653 |  | be |
| 7 Mar 1918 | UC 77 | Johannes Ries | | Cliffside (d.) | 4,969 |  | br |
| 8 Mar 1918 | U 110 | Karl Kroll | | Erica | 167 |  | br |
| 8 Mar 1918 | U 55 | Wilhelm Werner | | Madeline | 2,890 |  | br |
| 8 Mar 1918 | k.u.k. U28 | Zdenko Hudecek | | Mitra (d.) | 5,592 |  | br |
| 8 Mar 1918 | k.u.k. U28 | Zdenko Hudecek | | Uganda | 4,315 |  | br |
| 8 Mar 1918 | UC 27 | Otto Gerke | | Ayr | 3,050 |  | br |
| 8 Mar 1918 | UC 40 | Hermann Menzel | | Corsham | 2,760 |  | br |
| 8 Mar 1918 | UC 40 | Hermann Menzel | | Intent | 1,564 |  | br |
| 8 Mar 1918 | UC 71 | Walter Warzecha | | Saba (d.) | 4,257 |  | br |
| 9 Mar 1918 | U 110 | Karl Kroll | | Nanny Wignall | 93 |  | br |
| 9 Mar 1918 | U 35 | Lothar von Arnauld de la Perière | | Silverdale | 3,835 |  | br |
| 9 Mar 1918 | UB 34 | Hellmuth von Ruckteschell | | Randelsborg | 1,551 |  | da |
| 9 Mar 1918 | UB 80 | Max Viebeg | | Grane | 1,122 |  | nw |
| 9 Mar 1918 | UC 67 | Karl Neumann | | Jolanda | 80 |  | it |
| 9 Mar 1918 | UC 67 | Karl Neumann | | Pasqualina | 80 |  | it |
| 9 Mar 1918 | UC 75 | Walter Schmitz | | Marguerite | 10 |  | br |
| 10 Mar 1918 | U 110 | Karl Kroll | | Germaine | 1,428 |  | fr |
| 10 Mar 1918 | U 155 | Erich Eckelmann | | Wegadesk | 4,271 |  | nw |
| 10 Mar 1918 | U 55 | Wilhelm Werner | | Cristina | 2,083 |  | sp |
| 10 Mar 1918 | UC 40 | Hermann Menzel | | Columba | 138 |  | br |
| 10 Mar 1918 | UC 74 | Hans Adalbert von der Lühe | | Chagres | 5,288 |  | br |
| 10 Mar 1918 | UC 75 | Walter Schmitz | | Sunrise | 56 |  | br |
| 10 Mar 1918 | UC 75 | Walter Schmitz | | Wave | 47 |  | br |
| 10 Mar 1918 | UC 77 | Johannes Ries | | Skrymer | 1,476 |  | nw |
| 11 Mar 1918 | k.u.k. U28 | Zdenko Hudecek | | Stolt Nielsen | 5,684 |  | br |
| 11 Mar 1918 | UC 67 | Karl Neumann | | Tripoli | 824 |  | it |
| 12 Mar 1918 | | | | Gaupen | 622 |  | br |
| 12 Mar 1918 | U 154 | Hermann Gercke | | Nordkyn | 3,244 |  | nw |
| 12 Mar 1918 | UB 62 | Bernhard Putzier | | Oswin | 1,743 |  | sw |
| 12 Mar 1918 | UC 71 | Walter Warzecha | | Clarissa Radcliffe (d.) | 5,754 |  | br |
| 12 Mar 1918 | UC 71 | Walter Warzecha | | Savan (d.) | 4,264 |  | br |
| 13 Mar 1918 | | | | Nexus | 86 |  | br |
| 13 Mar 1918 | U 152 | Constantin Kolbe | | A. E. Whyland | 130 |  | am |
| 13 Mar 1918 | U 46 | Leo Hillebrand | | Crayford | 1,209 |  | br |
| 13 Mar 1918 | UB 16 | Rudolf Stier | | Lisette | 895 |  | br |
| 13 Mar 1918 | UB 34 | Hellmuth von Ruckteschell | | Adine | 2,235 |  | nw |
| 13 Mar 1918 | UB 49 | Hans von Mellenthin | | San Francesco Di Paolo | 70 |  | it |
| 13 Mar 1918 | UB 49 | Hans von Mellenthin | | Umta (d.) | 5,422 |  | br |
| 13 Mar 1918 | UB 59 | Erwin Waßner | | Tweed | 1,025 |  | br |
| 13 Mar 1918 | UC 71 | Walter Warzecha | | Londonier | 1,870 |  | be |
| 13 Mar 1918 | UC 75 | Walter Schmitz | | Arno Mendi | 2,827 |  | sp |
| 14 Mar 1918 | U 157 | Max Valentiner | | Arpillao | 2,768 |  | sp |
| 14 Mar 1918 | UB 33 | Fritz Gregor | | Carla | 1,668 |  | nw |
| 14 Mar 1918 | UB 49 | Hans von Mellenthin | | Principessa Laetitia | 4,011 |  | it |
| 14 Mar 1918 | UB 55 | Ralph Wenninger | | A. A. Raven | 2,459 |  | am |
| 14 Mar 1918 | UB 59 | Erwin Waßner | | Venezuela | 730 |  | fr |
| 14 Mar 1918 | UC 40 | Hermann Menzel | | Castleford | 1,741 |  | br |
| 14 Mar 1918 | UC 47 | Paul Hundius | | Jeanne Marie | 2,971 |  | fr |
| 14 Mar 1918 | UC 54 | Heinrich XXXVII Prinz zu Reuß | | Ardandearg | 3,237 |  | br |
| 14 Mar 1918 | UC 67 | Karl Neumann | | Jeanne | 145 |  | fr |
| 14 Mar 1918 | UC 71 | Walter Warzecha | | Agate | 248 |  | br |
| 14 Mar 1918 | UC 71 | Walter Warzecha | | Comrie Castle (d.) | 5,173 |  | br |
| 14 Mar 1918 | UC 75 | Walter Schmitz | | Tweed | 1,777 |  | br |
| 15 Mar 1918 | U 110 | Karl Kroll | | Amazon | 10,037 |  | br |
| 15 Mar 1918 | U 153 | Gernot Goetting | | Alessandra | 2,394 |  | it |
| 15 Mar 1918 | U 155 | Erich Eckelmann | | Joaquina (d.) | 333 |  | sp |
| 15 Mar 1918 | UB 33 | Fritz Gregor | | Sparkling Foam | 199 |  | br |
| 15 Mar 1918 | UB 49 | Hans von Mellenthin | | Clan Macdougall | 4,710 |  | br |
| 15 Mar 1918 | UC 67 | Karl Neumann | | Armonia | 5,226 |  | ca |
| 16 Mar 1918 | U 152 | Constantin Kolbe | | Ellaston | 3,192 |  | br |
| 16 Mar 1918 | U 90 | Walter Remy | | Oilfield | 4,000 |  | br |
| 16 Mar 1918 | UB 30 | Wilhelm Rhein | | Lightfoot | 1,873 |  | br |
| 16 Mar 1918 | UB 34 | Hellmuth von Ruckteschell | | Quintero | 1,611 |  | da |
| 16 Mar 1918 | UB 40 | Karl Dobberstein | | Author (d.) | 5,586 |  | br |
| 17 Mar 1918 | U 103 | Claus Rücker | | Cressida | 150 |  | br |
| 17 Mar 1918 | U 103 | Claus Rücker | | Sea Gull | 976 |  | br |
| 17 Mar 1918 | U 154 | Hermann Gercke | | Guadalquivir | 2,078 |  | sp |
| 17 Mar 1918 | UB 49 | Hans von Mellenthin | | Tripoli | 1,743 |  | it |
| 17 Mar 1918 | UB 52 | Otto Launburg | | Ivydene | 3,541 |  | br |
| 17 Mar 1918 | UB 57 | Johannes Lohs | | Anne Yvonne | 102 |  | fr |
| 17 Mar 1918 | UB 57 | Johannes Lohs | | Arvor | 52 |  | fr |
| 17 Mar 1918 | UB 57 | Johannes Lohs | | Beata | 102 |  | fr |
| 17 Mar 1918 | UB 59 | Erwin Waßner | | South Western | 674 |  | br |
| 17 Mar 1918 | UC 37 | Otto Kümpel | | Waihemo | 4,283 |  | br |
| 17 Mar 1918 | UC 75 | Walter Schmitz | | Eliza Anne | 36 |  | br |
| 18 Mar 1918 | U 103 | Claus Rücker | | Grainton (d.) | 6,042 |  | br |
| 18 Mar 1918 | U 155 | Erich Eckelmann | | Prometeo | 4,455 |  | it |
| 18 Mar 1918 | U 155 | Erich Eckelmann | | Reidar | 3,574 |  | nw |
| 18 Mar 1918 | U 46 | Leo Hillebrand | | Atlantic Sun | 2,333 |  | am |
| 18 Mar 1918 | UB 49 | Hans von Mellenthin | | Utrecht | 293 |  | fr |
| 18 Mar 1918 | UB 52 | Otto Launburg | | John H. Barry | 3,083 |  | br |
| 18 Mar 1918 | UB 52 | Otto Launburg | | Saldanha | 4,594 |  | br |
| 18 Mar 1918 | UC 25 | Karl Dönitz | | Massilia | 5,026 |  | it |
| 18 Mar 1918 | UC 75 | Walter Schmitz | | Navigator (d.) | 3,803 |  | br |
| 18 Mar 1918 | UC 77 | Johannes Ries | | Baygitano | 3,073 |  | br |
| 19 Mar 1918 | UB 49 | Hans von Mellenthin | | Giovanni Albanesi | 497 |  | it |
| 19 Mar 1918 | UB 49 | Hans von Mellenthin | | San Francesco Di Paolo | 70 |  | it |
| 19 Mar 1918 | UB 57 | Johannes Lohs | | Luxor | 3,571 |  | br |
| 19 Mar 1918 | UB 62 | Bernhard Putzier | | Burnstone | 2,340 |  | br |
| 20 Mar 1918 | U 101 | Carl-Siegfried Ritter von Georg | | Glenford | 494 |  | br |
| 20 Mar 1918 | U 103 | Claus Rücker | | Kassanga | 3,015 |  | br |
| 20 Mar 1918 | U 33 | Gustav Sieß | | Antonios M. Theophilatos | 2,282 |  | gr |
| 20 Mar 1918 | U 33 | Gustav Sieß | | Saint Dimitrios | 3,359 |  | br |
| 20 Mar 1918 | U 33 | Gustav Sieß | | Samoset | 5,251 |  | br |
| 20 Mar 1918 | U 33 | Gustav Sieß | | Yochow | 2,127 |  | br |
| 20 Mar 1918 | U 96 | Heinrich Jeß | | Custodian (d.) | 9,214 |  | br |
| 20 Mar 1918 | k.u.k. U40 | Johann Krsnjavi | | Lord Ormonde (d.) | 3,914 |  | ca |
| 20 Mar 1918 | UB 103 | Paul Hundius | | Eros | 858 |  | sw |
| 20 Mar 1918 | UB 31 | Wilhelm Braun | | Boorara (d.) | 6,570 |  | br |
| 20 Mar 1918 | UB 49 | Hans von Mellenthin | | Angelo Raffaele | 53 |  | it |
| 20 Mar 1918 | UB 59 | Erwin Waßner | | Azemmour | 897 |  | fr |
| 20 Mar 1918 | UC 67 | Karl Neumann | | Matteo Renato Imbriani | 5,882 |  | it |
| 21 Mar 1918 | U 154 | Hermann Gercke | | Chincha (d.) | 6,371 |  | am |
| 21 Mar 1918 | UB 103 | Paul Hundius | | Tyrhaug | 1,483 |  | br |
| 21 Mar 1918 | UB 40 | Karl Dobberstein | | Ikeda | 6,311 |  | br |
| 21 Mar 1918 | UB 49 | Hans von Mellenthin | | Dante C | 129 |  | it |
| 21 Mar 1918 | UB 55 | Ralph Wenninger | | Begonia | 3,070 |  | br |
| 21 Mar 1918 | UC 37 | Otto Kümpel | | Termini | 1,523 |  | it |
| 22 Mar 1918 | | | | Prosper | 115 |  | nl |
| 22 Mar 1918 | U 101 | Carl-Siegfried Ritter von Georg | | Trinidad | 2,592 |  | br |
| 22 Mar 1918 | UB 50 | Franz Becker | | Saint Jean Ii | 2,457 |  | fr |
| 22 Mar 1918 | UB 50 | Franz Becker | | Shadwell (d.) | 4,091 |  | br |
| 22 Mar 1918 | UB 78 | Arthur Stoßberg | | Polleon | 1,155 |  | br |
| 22 Mar 1918 | UC 67 | Karl Neumann | | San Giuseppe C. | 53 |  | it |
| 23 Mar 1918 | U 101 | Carl-Siegfried Ritter von Georg | | Jane Gray | 124 |  | br |
| 23 Mar 1918 | U 61 | Victor Dieckmann | | Etonian | 6,515 |  | br |
| 23 Mar 1918 | UB 55 | Ralph Wenninger | | Chattahoochee | 8,007 |  | am |
| 23 Mar 1918 | UB 55 | Ralph Wenninger | | Madame Midas | 1,203 |  | br |
| 23 Mar 1918 | UB 55 | Ralph Wenninger | | Mar Baltico | 2,023 |  | sp |
| 23 Mar 1918 | UB 55 | Ralph Wenninger | | Venborg | 1,065 |  | nw |
| 23 Mar 1918 | UB 57 | Johannes Lohs | | Sequoya (d.) | 5,263 |  | br |
| 23 Mar 1918 | UB 83 | Günther Krause | | Aulton | 634 |  | br |
| 23 Mar 1918 | UB 83 | Günther Krause | | Meline (d.) | 6,970 |  | br |
| 23 Mar 1918 | UC 17 | Erich Stephan | | New Dawn | 93 |  | br |
| 23 Mar 1918 | UC 53 | Adolf Ehrensberger | | Demodocus (d.) | 6,689 |  | br |
| 24 Mar 1918 | U 101 | Carl-Siegfried Ritter von Georg | | John G. Walter | 258 |  | br |
| 24 Mar 1918 | U 155 | Erich Eckelmann | | Avala | 3,834 |  | it |
| 24 Mar 1918 | U 155 | Erich Eckelmann | | Jorgina | 103 |  | br |
| 24 Mar 1918 | U 98 | Rudolf Andler | | Anchoria (d.) | 5,340 |  | br |
| 24 Mar 1918 | UB 103 | Paul Hundius | | Anteros | 4,241 |  | br |
| 24 Mar 1918 | UB 55 | Ralph Wenninger | | Fileur | 73 |  | fr |
| 24 Mar 1918 | UC 17 | Erich Stephan | | War Knight | 7,951 |  | br |
| 24 Mar 1918 | UC 53 | Adolf Ehrensberger | | La Nuova Felice | 72 |  | it |
| 24 Mar 1918 | UC 53 | Adolf Ehrensberger | | Nuovo Enio | 35 |  | it |
| 24 Mar 1918 | UC 53 | Adolf Ehrensberger | | Regina Immacolata | 35 |  | it |
| 24 Mar 1918 | UC 53 | Adolf Ehrensberger | | Tre Sorelle Salvo | 26 |  | it |
| 24 Mar 1918 | UC 67 | Karl Neumann | | Partenope (rin) | 834 |  | it |
| 25 Mar 1918 | U 155 | Erich Eckelmann | | Rio Ave | 179 |  | pt |
| 25 Mar 1918 | U 96 | Heinrich Jeß | | Destro | 859 |  | br |
| 25 Mar 1918 | UB 21 | Walter Scheffler | | Hercules | 1,095 |  | br |
| 25 Mar 1918 | UB 49 | Hans von Mellenthin | | Carlo Splendor | 105 |  | it |
| 25 Mar 1918 | UB 78 | Arthur Stoßberg | | Border Lads | 86 |  | br |
| 25 Mar 1918 | UC 37 | Otto Kümpel | | Warturm (d.) | 4,965 |  | br |
| 25 Mar 1918 | UC 67 | Karl Neumann | | Francesco Antonio Aiello | 44 |  | it |
| 25 Mar 1918 | UC 67 | Karl Neumann | | L’iniziatore | 47 |  | it |
| 26 Mar 1918 | U 154 | Hermann Gercke | | Beira Alta | 101 |  | pt |
| 26 Mar 1918 | UB 50 | Franz Becker | | Volturno | 11,495 |  | it |
| 26 Mar 1918 | UB 78 | Arthur Stoßberg | | British Star (d.) | 6,888 |  | br |
| 26 Mar 1918 | UC 17 | Erich Stephan | | Lady Cory-wright | 2,516 |  | br |
| 26 Mar 1918 | UC 37 | Otto Kümpel | | Unidentified Sailing Vessel (1 Of 3) | 31 |  | gr |
| 26 Mar 1918 | UC 37 | Otto Kümpel | | Unidentified Sailing Vessel (2 Of 3) | 15 |  | gr |
| 26 Mar 1918 | UC 37 | Otto Kümpel | | Unidentified Sailing Vessel (3 Of 3) | 15 |  | gr |
| 26 Mar 1918 | UC 67 | Karl Neumann | | Elisabetha | 45 |  | it |
| 27 Mar 1918 | | | | Kale | 545 |  | br |
| 27 Mar 1918 | U 101 | Carl-Siegfried Ritter von Georg | | Allendale | 2,153 |  | br |
| 27 Mar 1918 | U 155 | Erich Eckelmann | | Watauga | 99 |  | br |
| 27 Mar 1918 | UC 53 | Adolf Ehrensberger | | Castrenzo Coppola | 94 |  | it |
| 27 Mar 1918 | UC 54 | Heinrich XXXVII Prinz zu Reuß | | Carlo P. | 61 |  | it |
| 28 Mar 1918 | U 90 | Walter Remy | | City Of Winchester | 114 |  | br |
| 28 Mar 1918 | U 96 | Heinrich Jeß | | Inkosi | 3,661 |  | br |
| 28 Mar 1918 | UB 72 | Friedrich Träger | | Tithonus | 3,463 |  | br |
| 28 Mar 1918 | UC 64 | Ferdinand Schwartz | | Botha | 17 |  | br |
| 28 Mar 1918 | UC 64 | Ferdinand Schwartz | | Brotherly Love | 19 |  | br |
| 28 Mar 1918 | UC 64 | Ferdinand Schwartz | | Honora | 29 |  | br |
| 28 Mar 1918 | UC 64 | Ferdinand Schwartz | | Noel | 21 |  | br |
| 28 Mar 1918 | UC 75 | Walter Schmitz | | Dryden (d.) | 5,839 |  | br |
| 29 Mar 1918 | UB 57 | Johannes Lohs | | India (d.) | 5,990 |  | pt |
| 29 Mar 1918 | UB 57 | Johannes Lohs | | T. R. Thompson | 3,538 |  | br |
| 29 Mar 1918 | UC 37 | Otto Kümpel | | Porto Santo | 2,801 |  | pt |
| 29 Mar 1918 | UC 73 | Walter Wiedemann | | Unidentified Sailing Vessel (1 Of 7) | 18 |  | gr |
| 29 Mar 1918 | UC 73 | Walter Wiedemann | | Unidentified Sailing Vessel (2 Of 7) | 18 |  | gr |
| 29 Mar 1918 | UC 73 | Walter Wiedemann | | Unidentified Sailing Vessel (3 Of 7) | 18 |  | gr |
| 29 Mar 1918 | UC 73 | Walter Wiedemann | | Unidentified Sailing Vessel (4 Of 7) | 18 |  | gr |
| 29 Mar 1918 | UC 73 | Walter Wiedemann | | Unidentified Sailing Vessel (5 Of 7) | 5 |  | gr |
| 29 Mar 1918 | UC 73 | Walter Wiedemann | | Unidentified Sailing Vessel (6 Of 7) | 5 |  | gr |
| 29 Mar 1918 | UC 73 | Walter Wiedemann | | Unidentified Sailing Vessel (7 Of 7) | 5 |  | gr |
| 30 Mar 1918 | U 101 | Carl-Siegfried Ritter von Georg | | Lough Fisher | 418 |  | br |
| 30 Mar 1918 | U 46 | Leo Hillebrand | | Stabil | 538 |  | nw |
| 30 Mar 1918 | U 96 | Heinrich Jeß | | Geraldine | 23 |  | br |
| 30 Mar 1918 | U 96 | Heinrich Jeß | | St. Michan | 43 |  | br |
| 30 Mar 1918 | UB 64 | Otto von Schrader | | Salaminia | 3,112 |  | gr |
| 30 Mar 1918 | UB 72 | Friedrich Träger | | Vafos | 1,322 |  | nw |
| 31 Mar 1918 | U 152 | Constantin Kolbe | | Indien | 4,199 |  | da |
| 31 Mar 1918 | U 33 | Gustav Sieß | | La Loire | 5,343 |  | fr |
| 31 Mar 1918 | U 96 | Heinrich Jeß | | Conargo | 4,312 |  | br |
| 31 Mar 1918 | UB 57 | Johannes Lohs | | Alcinous (d.) | 6,743 |  | br |
| 31 Mar 1918 | UB 57 | Johannes Lohs | | Excellence Pleske | 2,059 |  | br |
| 31 Mar 1918 | UB 77 | Wilhelm Meyer | | Celtic (d.) | 20,904 |  | br |
| 31 Mar 1918 | UC 35 | Hans Paul Korsch | | Immacolata | 35 |  | it |
| 31 Mar 1918 | UC 52 | Hellmuth von Doemming | | San Nicola | 24 |  | br |
| 31 Mar 1918 | UC 64 | Ferdinand Schwartz | | Vianna | 401 |  | br |
|
| 555,632 | | | 201 ships sunk (379,895 tons) and 29 ships damaged (175,737 tons). Legend (d.) means the ship was damaged.
We have a picture of this vessel.
|
This map shows where Allied ships were hit during March 1918.

In some cases the exact positions of losses are not known, those are not shown.