- Source: Japanese ship Kotaka
- Japanese ship Kotaka
- Japanese torpedo boat Kotaka
- List of Japanese Navy ships and war vessels in World War II
- Japanese gunboat Kotaka
- Kotaka
- List of ships of the Imperial Japanese Navy
- List of destroyers of Japan
- Japanese aircraft carrier Akagi
- Japanese destroyer Shimakaze (1942)
- Japanese aircraft carrier Hōshō
Two Japanese warships have borne the name Kotaka:
Japanese torpedo boat Kotaka, a torpedo boat launched in 1888 and stricken in 1927
Japanese gunboat Kotaka, a gunboat launched in 1930 and sunk in 1944