1984 ECAC South men's basketball tournament

The 1984 ECAC South men's basketball tournament (now known as the Colonial Athletic Association men's basketball tournament) was held March 8–10 at the JMU Convocation Center in Harrisonburg, Virginia.

Richmond defeated Navy in the championship game, 74–55, to win their first ECAC South men's basketball tournament and, therefore, earn an automatic bid to the 1984 NCAA tournament. This was Richmond's first-ever bid to the NCAA tournament.