Achasta (also, Achiesta[2]) is a former Ohlone settlement in Monterey County, California.

[3] It was located at the site of modern-day Monterey.

[3] Achasta was historically a dwelling of the Rumsen people.

Alternate historical spellings include Achastas, Achastli, Achastlian, Achastlien, Achastlier, Achastlies.

This Monterey County, California-related article is a stub.