List of heavy mortars

Heavy mortars are large-calibre mortars designed to fire a relatively heavy shell on a high angle trajectory.

Muzzle-loading

Caliber (mm)	Weapon name	Country of origin	Period
105	10 cm Nebelwerfer 35	Nazi Germany	World War II
106.7	Ordnance ML 4.2 inch Mortar	United Kingdom	World War II, Korea
107	4.2-inch mortars M2 and M30	United States	World War II, Korea, Vietnam
140	14 cm Minenwerfer M 15	Austria-Hungary	World War I
148	Coehorn mortar M. 1841	United States	1841
150	Mortier de 150 mm T Mle 1916 Batignolles	France	World War I
150	Mortier de 150 mm T Mle 1917 Fabry	France	World War I
152	Newton 6 inch Mortar	United Kingdom	World War I
160	160 mm IMI Mortar	Israel	Cold War
160	Soltam M-66	Israel
160	Vafa mortar	Iran
160	Patria Vammas M58	Finland
169[1]	38 cm sLdgW	Nazi Germany	World War II
170	17 cm mittlerer Minenwerfer	German Empire	World War I
200	20 cm Luftminenwerfer M 16	Austria-Hungary	World War I
203	8-inch siege mortar M.1841	United States	1841
203	Livens Projector	United Kingdom	World War I
225	22.5 cm Minenwerfer M 15	Austria-Hungary	World War I
240	Dumezil-Batignolles Mortier de 240 mm	France	World War I
240	9.45 inch Heavy Mortar "Flying Pig"	United Kingdom	World War I
240	24 cm schwere FlügelMinenWerfer Albrecht	German Empire	World War I
240	24 cm schwere FlügelMinenWerfer IKO	German Empire	World War I
245	24 cm schwerer LadungsWerfer Ehrhardt	German Empire	World War I
250	25 cm schwere Minenwerfer	German Empire	World War I
250	Mortier Negrei calibrul 250 mm Model 1916	Kingdom of Romania	World War I
250	Albrecht Mortar	German Empire	World War I
254	10-inch siege mortar M. 1841	United States	1841
254	10-inch seacoast mortar M. 1841	United States	1841
260	26 cm Minenwerfer M 17	Austria-Hungary	World War I
320	320 mm Type 98 mortar	Japan	World War II
325	Mortier de 12 Gribeauval	Kingdom of France	1781
330	13-inch seacoast mortar M. 1861	United States	1861
610	Monster Mortar	Belgium	1832
914	Little David	United States	World War II
914	Mallet's Mortar	United Kingdom	1857

Breech-loading

Caliber (mm)	Weapon name	Country of origin	Period
105	10 cm Nebelwerfer 40	Nazi Germany	World War II
160	160mm Mortar M1943	Soviet Union	World War II
160	M-160 mortar	Soviet Union	Cold War
200	20 cm Luftminenwerfer M 16	Austria-Hungary	World War I
209	21 cm Mörser M1880	German Empire	World War I
210	21 cm GrW 69	Nazi Germany	World War II
211	21 cm Mörser 99	German Empire	World War I
211	21 cm Mörser 10	German Empire	World War I
211	21 cm Mörser 16	German Empire	World War I
211	21 cm Mrs 18	Nazi Germany	World War II
220	Mortier de 220 mm modèle 1880	France	World War I
220	Mortier de 220 mm TR mle 1915/1916	France	World War I / World War II
240	M240 towed mortar	Soviet Union	Cold War
240	2S4 Tyulpan self propelled mortar	Soviet Union	Cold War
260	Mortaio da 260/9 Modello 16	Italy	World War I /World War II
270	Mortier de 270 mm modèle 1885	France	World War I
270	Mortier de 270 mm modèle 1889	France	World War I / World War II
280	280 mm mortar M1939 (Br-5)	Soviet Union	World War II
280	Mortier de 280 Schneider	France	World War I / World War II
293	Mortier de 293 Danois sur affut-truck modèle 1914	France	World War I / World War II
305	12-inch coast defense mortar M1886, M1890, M1908, and M1912	United States	World War I / World War II
370	Mortier de 370 modèle 1914 Filloux	France	World War I / World War II
420	2B1 Oka	Soviet Union	Cold War
540	Karl-Gerät 041	Nazi Germany	World War II
600	Karl-Gerät 040	Nazi Germany	World War II