The 1977–78 Georgetown Hoyas men's basketball team represented Georgetown University during the 1977–78 NCAA Division I college basketball season. John Thompson, coached them in his sixth season as head coach. An independent, Georgetown played its home games at McDonough Gymnasium on the Georgetown campus in Washington, D.C., and finished the season with a record of 23-8. Knocked out of the ECAC South-Upstate Region tournament in the semifinals, the team missed an NCAA tournament bid for the second consecutive season. The Hoyas instead appeared in the 1978 National Invitation Tournament (NIT), their second straight NIT appearance, and finished in fourth place.