Frigate captain is a naval rank in the naval forces of several countries. Corvette captain lies one level below frigate captain.

It is usually equivalent to the Commonwealth/US Navy rank of commander.

Countries using this rank include Argentina, Colombia and Spain , France (French: capitaine de frégate), Belgium (Dutch: fregatkapitein), Italy (Italian: capitano di fregata), Brazil and Portugal (Portuguese: capitão de fragata), Croatia (Croatian: kapetan fregate) and Germany (German: Fregattenkapitän).

In the Royal Canadian Navy, capitaine de frégate is the official French language name for the rank of commander.

The NATO rank code is OF-4, the official translation for instance of the German Fregattenkapitän as well as the French capitaine de frégate into English is "commander senior grade".