Cape Kolka (Livonian: Kūolka nanā, Latvian: Kolkasrags, Old German name - Domesnes, Russian - Колка or мыс Домеснес) - cape on the Baltic Sea, near the entry to Gulf of Riga, in Livonian coast, in the Courland historical region of Latvia. The cape is surrounded by the Irbe Strait (Irbes šaurums) which serves as the natural border with Estonia. Cape Kolka represents the southwestern limit of the Gulf of Riga.(C.Michael Hogan. 2011) East of the cape is located the island of Ruhnu (Estonia) that lies in the middle of the Gulf.
Near the cape is located Kolka lighthouse near the village of Kolka. There is a line of picturesque old Livonian settlements along the Baltic Sea shore, including Vaide, Saunags, Pitrags, Košrags and Sīkrags.