The Sunosaki-class combat support ship (洲埼型給油艦, Sunosaki-gata kyūyukan) was a class of two support ships of the Imperial Japanese Navy (IJN), serving during World War II.

In 1939, the IJN planned two support ship classes to help their aircraft carriers.

The Sunosaki was planned to support for two medium-sized carriers (Sōryū and Hiryū) in the battlefield.

The Sunosaki class was unable to support Japan's carrier task force, because their commissions were delayed.

They sailed between the Japanese mainland and Southeast Asia, and were lost before participating in a naval battle.