Chilko or chilco may refer to:
Chilko River Chilko Lake, officially known as Tŝilhqox Biny. Various plants in Chile and Argentina: Some of the Baccharis genus: Baccharis chilco; Baccharis fevillea, also known as chilca; Baccharis latifolia, also known as chilca, chilca blanca or chilca larga; Fuchsia magellanica, also known as chilca, chilcón, fucsia or jazmín del Papa. Mitraria coccinea, also known as botellita or chilca. Astianthus, also known as sabino.
See also Nechacco, a paddle steamer re-registered as "Chilco".