Chilcayoc Grande (possibly from Quechua ch'illka baccharis,[1] -yuq a suffix to indicate possession, "the one that has got baccharis" or "the one with baccharis", Spanish grande large) is a volcano in the Andes of Peru, about 3,243 metres (10,640 ft) high.

[2] It is situated in the "Valley of the Volcanoes" in the Arequipa Region, Castilla Province, Andagua District.

[3] Chilcayoc Grande lies south-west of the Chachas Lake and south-east of the volcanoes Chilcayoc and Jechapita (3,388 m).

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