Kunka, Mountain summit in La Raya mountain range, Peru.

Kunka is a mountain summit in the Andes at approximately 5,200 meters elevation that forms a natural border between the Cusco and Puno regions. The peak sits within the La Raya mountain range and anchors the landscape where different geographical zones meet.

Kunka stands at La Raya Pass, the 5,200-metre saddle where the road and the railway linking Cusco with Lake Titicaca cross the La Raya range. The pass has long been the crossing point between the Cusco highlands and the Altiplano around Puno, and the mountain rises directly above it. The Willkanuta River begins near the pass, and the Hatun K'uchu stream flows north from the mountain's foot into it.

Kunka is an Aymara and Quechua word meaning 'throat, gullet, neck, voice'; the Hispanicized spelling Cunca also appears on maps. The neighbouring peak Hatun Ichhuna Kunka and the stream Hatun K'uchu carry the same Quechua naming, so the toponyms around the pass read as a small vocabulary of the language.

The mountain can be best viewed from the Peru Rail train service traveling between Cusco and Puno, which passes through the La Raya mountain pass. The train ride provides excellent vantage points of the mountain landscape and surrounding highland terrain along the way.

Kunka's name means "throat, gullet, neck, voice" in both Aymara and Quechua, and its Hispanicized form is Cunca. The peak rises southwest of Yana Khuchilla and Chimpulla, with Huch'uy K'uchu to the north and Hatun Ichhuna Kunka to the south. The Willkanuta River begins near the pass below.