Japanese submarine Ro-55
# Japanese submarine Ro-55

Ro-55 or Japanese submarine Ro-55 may refer to more than one submarine of the Imperial Japanese Navy:

* Japanese submarine Ro-55 (1921), a Type L submarine in commission from 1921 to 1940
* Japanese submarine Ro-55 (1944), a Kaichū type submarine commissioned in 1944 and sunk in 1945
