Rayna Knyaginya Peak (Bulgarian: връх Райна Княгиня, romanized: vrah Rayna Knyaginya, IPA: [ˈvrɤx ˈrajnɐ kɲɐˈɡiɲɐ]) is a peak of elevation 680 m in western Bowles Ridge, Livingston Island in the South Shetland Islands, Antarctica. Surmounting Perunika Glacier to the south and northwest, and Kaliakra Glacier to the northeast.
The peak is named after Rayna Knyaginya (pseudonym of Rayna Futekova, 1856–1917), heroine of the Bulgarian liberation movement.