Kalena Hoku was a female Human of Hawaiian origin serving in Starfleet in the 24th century. Hoku had a milky complexion, blue-green eyes and short blonde hair. Hoku held the rank of Captain and commanded the USS Mjolnir in the 2370s.
In 2376, Hoku brought Admiral Leonard James Akaar to Deep Space 9 where she and Kira Nerys briefly spoke to each other. (DS9 - Mission Gamma novel: Twilight, DS9 - Worlds of Star Trek: Deep Space Nine novel: The Dominion: Olympus Descending)
Hoku and Kira met again later in 2376 when Kira and Sam Bowers came aboard the Mjolnir to take possession of the runabout USS Yolja. They talked about Kira's promotion to Captain, Bajor entering the Federation and Asarem Wadeen's accession to First Minister. Kira asked Hoku about the rumors of her being promoted to Rear Admiral, although Hoku had heard little about it. As Kira was leaving the ship, Hoku told her she hoped they would meet again. (DS9 - Worlds of Star Trek: Deep Space Nine novel: The Dominion: Olympus Descending)