Ch'alla Willk'i (Aymara ch'alla sand, willk'i gap, "sand gap", also spelled Challa Willkhi, Challahuillque, Challahuillqui) may refer to:
- Ch'alla Willk'i (La Paz), a mountain in the La Paz Department, Bolivia
- Ch'alla Willk'i (Oruro), a mountain in the Sajama Province, Oruro Department, Bolivia
- Ch'alla Willk'i (Totora), a mountain in the San Pedro de Totora Province, Oruro Department, Bolivia
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