| H | Hecla (Australia) | Hipparchus (Chile) |
| H 11347 (Germany) | Heikki Peuranen (Finland) | Hispania (GB) |
| (H. C. Anderson) (Australia) | Heiltje (Netherlands) | Hitra (Norway) |
| (H. H. Meier) (Germany) | Heimat (Germany) | Hitzacker (Germany) |
| H. T. Pott (USA) | Heinavest (Finland) | Hjalm (Denmark) |
| Ha. 8 (USA) | (Heinavest I) (Finland) | Hjeljen (Denmark) |
| Ha. 19 (USA) | (Heinavest II) (Finland) | HMAFV 2757 (GB) |
| Haapaniemi (Finland) | (Heinrich Gerlach) (Germany) | Hoga (USA) |
| (Haarek) (Norway) | Heinrich von der Luhe (Germany) | Hohentweil (Austria) |
| (Habsburg) (Germany) | Hekkingen (Norway) | (Hohenzollern) (Germany) |
| (Hafen-Amt Bremen II) (Germany) | (Hel) (Poland) | Hoher Goll (Germany) |
| (Hafen Polizei VI) (Germany) | Heland (Norway) | Holland (Netherlands) |
| Haida (Canada) | Helen A. Miller (Falklands Islands) | Holland I (GB) |
| Haida Dugout Canoe (USA) | (Helen M. B.) (Canada) | (Hollands Trouw) (Australia) |
| Hajen (Sweden) | Helena (Netherlands) | (Holmen III) (Netherlands) |
| Halla IX (Finland) | (Helena) (Canada) (GB) | (Holmvik) (Netherlands) |
| (Halla XV) (Finland) | Helene (Sweden) | Hong Hai (Australia) |
| Halla XVII (Finland) | (Helene) (Germany) | (Hook Mountain) (USA) |
| Hame (Finland) | Helga (Finland) | Hoop op Weivaart (Germany) |
| (Hamina) (Finland) | Helge (Denmark) | Hope (USA) |
| Hampton Roads (USA) | Helka (Hungary) | (Hopeasalmi) (Finland) |
| (Hanne Hansen) (Denmark) | Hellas (Denmark) | Hoppet (Sweden) |
| Hanne Lene (Denmark) | (Hellnas) (Finland) | Hornet (USA) |
| Hans-Pieter (Germany) | Helmut (Germany) | (Horns Rev) (Denmark) |
| Hansa (Germany) | (Helsinki) (Finland) | (Horst Wessel) (USA) |
| Hansteen (Norway) | Helwick (GB) | Hoshi (GB) |
| (Harecraig II) (GB) | (Helwick) (GB) | Houtepen (Netherlands) |
| Harge (Sweden) | Hemerica (France) | Hovinsaari (Finland) |
| (Harge II) (Sweden) | Henmoor 3 (Germany) | Howard (USA)* |
| (Harlem) (USA) | (Hendrina II) (Netherlands) | HSL-102 (GB) |
| (Harmattan) (Germany) | Henry (GB) | Huascar (Chile) |
| (Harmonie VI) (Netherlands) | Herbert III (Sweden) | (Hudik) (Sweden) |
| (Hartley) (Colombia) | Herbert Leigh (GB) | Hudson (Netherlands) |
| Hathor (GB) | Hercules (Netherlands) (Panama) (USA) | (Hughes No. 75 (USA) |
| (Hatsuhi) (Philippines) | (Hercules) (GB) (India) (Netherlands) | Hugo (Netherlands) |
| Havel (Germany) | Herkules (Sweden) | (Hugo Heidrich) (Netherlands) |
| Haven (GB) | Hermann (Germany) | (Hugo Stinnes V) (Germany) |
| (Havendienst IV) (Germany) | Hermine (Germany) | Humber (GB) |
| Havendienst 20 (Netherlands) | Hero (Australia) | (Humber) ((GB) |
| (Havenpolitie I) (Germany) | (Hero) (GB) | (Humppa) |
| (Havet) (Germany) | (Hertha) (Germany) | Huntington (USA) |
| (Havfruen III) (Norway) | Herzogin Cecilie (Finland) | Hurma (Finland) |
| Havre II (France) | Hesper (USA)* | Huron (USA) |
| (Havringe) (Sweden) | Hestmanden (Norway) | (Hussar) (Germany) |
| Hawila (Sweden) | Hiddensee (USA) | Hydrabad (New Zealand) |
| (Hayabusa Maru) (Japan) | Hikawa Maru (Japan) | Hydrofoil H.D. 4 (Canada) |
| Hazard (USA) | Hikitia (New Zealand) | Hydrogen (GB) |
| (HDML 1348) (New Zealand) | (Hilfred) (Denmark) | Hydrograaf (Netherlands) |
| (HDML 1350) (New Zealand) | (Hinemoa) (Germany) | (Hyma) (Norway) |
| Heaven (Netherlands) | Hindenburg (Germany) | Hyoki (Finland) |
