Sirk'i, Mountain in Sebastián Pagador Province, Oruro Department, Bolivia

Sirk'i is a 4,962-metre-high (16,280 ft) mountain in the Andes of Bolivia, east of Poopó Lake. It lies in the Oruro Department, Sebastián Pagador Province, which is identical to the Santiago de Huari Municipality, northwest of Chullpiri and east of Wila Sirka. The Jach'a Qala River originates northwest of the mountain and flows south.

Sirk'i lies in the Sebastián Pagador Province of Oruro Department, a province identical to the Santiago de Huari Municipality. The Jach'a Qala River, whose name means "big stone" in Aymara, rises northwest of the mountain and flows south. The peak stands east of Poopó Lake, northwest of Chullpiri and east of Wila Sirka.

The name comes from the Aymara language, and locals use several different spellings for it. These varied forms show the living connection between the mountain and Aymara communities in the region.

The ascent demands technical climbing experience and specialized high-altitude equipment. Access begins from remote mountain paths near Payrumani Canton and requires good physical preparation before attempting the climb.

The mountain stands in relative isolation, sitting about 14.6 kilometers (9 miles) from the next higher peak, Wari Kunka. This geographic separation makes it a distinct landmark in the regional mountain landscape.