The Khyzon Sea is a body of water on Andor.

In 2376, a storm was raging over the Khyzhon Sea when Thirishar ch'Thane and Prynn Tenmei viewed Andor from orbit aboard the Viola. (DS9 novel: Andor: Paradigm)

In an alternate timeline, Thelin suggested to David Marcus that his mother could have gone to one of the retirement homes on this sea instead of Pacifica. (ST - Myriad Universes novella: The Chimes at Midnight)

the planet Andor
cities and settlements	Harbortown • Laibok • Lor'Tan
landmarks and institutions	Grand Staircase • Therin Park • Tower Hill
geography	Weyzhiss Mountains
bodies of water	Anshim Ocean • Bo'ab • Central Canal • Emarnl Lake • Frost River • Khyzhon Sea • La'Len Ocean • La'Vor Sea • Lor'Tan Strait • Mar'it • Moss River • Smathl Lake • Lake Thalassa