Oarisma is a genus of grass skippers in the butterfly family Hesperiidae. There are about 14 described species in Oarisma, found in the Americas.

In 2019, the Taxonomic Report of the International Lepidoptera Survey published information placing species of the genus Copaeodes into Oarisma. These species are still sometimes treated as members of the (former) genus Copaeodes.

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