Hesperia pahaska, the Pahaska skipper, is a butterfly of the Hesperiidae family. It is found from North America in a narrow belt of states extending from Texas to North Dakota, just reaching Canada in southern Saskatchewan and Manitoba. The wingspan is 28–33 mm. The flight period is from June to early July in the northern U.S. The larvae feed on blue grama (Bouteloua gracilis), fluff grass (Erioneuron pulchellum), Poaceae species, and Tridens pulchella.