Keani Reiner (1952–1994) was a Hawaiian surfer and sailor.
Keani Reiner and her crewmate Penny Rawlins were the first women to sail on a long-open ocean voyage aboard Hokule?a on the return trip from Tahiti to Hawai'i in 1976.
She was also a part of the first all girl crew to complete the Na Holo Kai Sailing Canoe Race from Oahu to Kauai in 1990.