Tri-Cities Prep, a Catholic High School is a private, Roman Catholic high school in Pasco, Washington.

Tri-Cities Prep was established in 1998 and is located in the Tri Cities area of Washington.

Pasco is located in the Roman Catholic Diocese of Spokane, while Kennewick and Richland are in the Roman Catholic Diocese of Yakima.

[1] Tri-Cities Prep is a member of the Eastern Washington Athletic Conference (EWAC).

The school offers 11 sports: volleyball, football, and men's and women's cross-country in the fall; men's and women's basketball in the winter; and baseball, softball, and men's and women's golf in the spring.