The 15 cm schwere Feldhaubitze M 14 was a heavy howitzer which served with Austria-Hungary during World War I.

[1] The successor states to the Austro-Hungarian Empire continued to use the M 14 and M 14/16 after the First World War.

Postwar modifications were common to make it suitable for motor traction and to address other issues.

Former enemies such as Romania and Italy also operated this series of guns whether they were captured, bought or received as war reparations after the Treaty of Versailles.

M 14 and M 14/16 howitzers captured by Italy during the war or received as reparations, were put into service with the designation Obice da 149/13.