Washington Catholic High School is a private, Roman Catholic high school located adjacent to the courthouse square in Washington, Indiana.

It is a part of the Roman Catholic Diocese of Evansville.

It is part of a larger school system that was founded by Mother Theodore Guerin in 1857.

Until recently, it was under the care of the Sisters of Providence of Saint Mary-of-the-Woods.

Band (Participating in the yearly regional ISSMA instrumental contest), "Spotlight" (School Newspaper), Yearbook The school's athletic nickname is the "Cardinals", and it participates in the Blue Chip Conference.