Assumption High School (AHS) is a public secondary school located at 4880 Highway 308 in Assumption Parish, Louisiana, United States, north of the city of Napoleonville.

The sole high school in Assumption Parish, it takes students from all parts of the parish, including Napoleonville, Labadieville, Pierre Part, Bayou L'Ourse, and Belle Rose.

Dual enrollment classes are offered to eligible juniors and seniors through L. E. Fletcher Technical Community College.

The available AP courses are as follows: human geography, calculus, civics, and biology II.

Le Stang & The Stampede serves as the school's newspaper.