Heavy mortars are large-calibre mortars designed to fire a relatively heavy shell on a high angle trajectory. Such weapons have a relatively short range, but are usually less complex than similar calibre field artillery.
This category includes the "Trench Mortars" of World War I which were all too heavy and cumbersome, and hence lacked the mobility, to be classed as infantry mortars.
| width=12% | Caliber (mm) | width=45% | Weapon name | width=24% | Country of origin | width=19% | Period |
|---|---|---|---|---|---|---|---|
| 50.8 | 2 inch Medium Mortar "Toffee Apple"[1] | World War I | |||||
| 58.3 | World War I | ||||||
| 58.3 | World War I | ||||||
| 58.3 | Mortier de 58 mm type 2 "Crapouillot"[2] | World War I | |||||
| 90[3] | World War II | ||||||
| 91.5 | World War I | ||||||
| 105 | World War I | ||||||
| 105 | World War II | ||||||
| 106.7 | World War II, Korea | ||||||
| 107 | World War II, Korea, Vietnam | ||||||
| 140 | World War I | ||||||
| 148 | 1841 | ||||||
| 150 | World War I | ||||||
| 152 | World War I | ||||||
| 160 | 160 mm IMI Mortar | Cold War | |||||
| 160 | |||||||
| 160 | |||||||
| 160 | |||||||
| 169[4] | World War II | ||||||
| 170 | World War I | ||||||
| 200 | |||||||
| 203 | 1841 | ||||||
| 203 | World War I | ||||||
| 225 | |||||||
| 240 | World War I | ||||||
| 240 | 9.45 inch Heavy Mortar "Flying Pig" | World War I | |||||
| 240 | World War I | ||||||
| 240 | World War I | ||||||
| 245 | World War I | ||||||
| 250 | World War I | ||||||
| 250 | World War I | ||||||
| 250 | World War I | ||||||
| 254 | 1841 | ||||||
| 254 | 1841 | ||||||
| 260 | World War I | ||||||
| 320 | World War II | ||||||
| 325 | 1781 | ||||||
| 330 | 1861 | ||||||
| 914 | World War II | ||||||
| 914 | 1857 |
| width=12% | Caliber (mm) | width=45% | Weapon name | width=24% | Country of origin | width=19% | Period |
|---|---|---|---|---|---|---|---|
| 90 | |||||||
| 90 | |||||||
| 105 | World War II | ||||||
| 120 | Balkan wars / World War I / Finnish Civil War / Hungarian–Romanian War | ||||||
| 120 | World War I | ||||||
| 150 | World War I | ||||||
| 160 | World War II | ||||||
| 160 | Cold War | ||||||
| 200 | World War I | ||||||
| 209 | World War I | ||||||
| 210 | World War II | ||||||
| 211 | World War I | ||||||
| 211 | World War I | ||||||
| 211 | World War I | ||||||
| 211 | World War II | ||||||
| 220 | |||||||
| 220 | World War I / World War II | ||||||
| 240 | Cold War | ||||||
| 260 | World War I /World War II | ||||||
| 270 | World War I | ||||||
| 270 | World War I / World War II | ||||||
| 280 | World War II | ||||||
| 280 | World War I / World War II | ||||||
| 293 | World War I / World War II | ||||||
| 305 | 12-inch coast defense mortar M1886, M1890, M1908, and M1912 | World War I / World War II | |||||
| 370 | World War I / World War II | ||||||
| 420 | Cold War | ||||||
| 540 | World War II | ||||||
| 600 | World War II | ||||||