Sirk'i (Aymara for wart, also spelled Cerke, Cirque, Serke, Serkhe, Sirqui) may refer to:

• Sirk'i (Cochabamba), a mountain in the Cochabamba Department, Bolivia
• Sirk'i (La Paz), a mountain in the La Paz Department, Bolivia
• Sirk'i (Oruro), a mountain in the Oruro Department, Bolivia
• Sirk'i (Potosí), a mountain in the Potosí Department, Bolivia

• Cowtail pine
• Cow Tales
• Cow Tipping (Beavis and Butt-head Episode)
• Cowton Burn
• Cowton railway station
• Cowtow
• Cow Tower, Norwich
• Cowtown
• Cowtown Coliseum
• Cowtown Rodeo
• Cowtown Speedway
• Cow Trap
• Cow tree
• Cowwarr
• Cowwarr railway station
• Cowwarr, Victoria
• Cow-Wheat
• Cowyboy bebop
• Cow’s milk
• Cox1
• Cox-2
• Cox3
• Cox-40
• Coxa
• Coxae