German submarine U-154

U-154 may refer to one of the following German submarines:

, a Type U 151 submarine launched in 1917 and that served in World War I until sunk on 11 May 1918 During the First World War, Germany also had this submarine with a similar name: , a Type UB III submarine laid down in 1917 , a Type IXC submarine that served in World War II until sunk on 3 July 1944