1983–84 Washington Huskies men's basketball team

The 1983–84 Washington Huskies men's basketball team represented the University of Washington for the 1983–84 NCAA Division I men's basketball season. Led by thirteenth-year head coach Marv Harshman, the Huskies were members of the Pacific-10 Conference and played their home games on campus at Hec Edmundson Pavilion in Seattle, Washington.

The Huskies were 22–6 overall in the regular season and 15–3 in conference play, co-champions with Oregon State, and ranked fifteenth in both polls. There was no conference tournament this season; it debuted three years later. Nearing the end of the regular season in late February, Harshman's contract was extended for one more year.

Washington made the NCAA tournament for the first time in eight years and was seeded sixth in the West regional of the 53-team field, with the first two rounds at Beasley Coliseum in Pullman. The Huskies defeated Nevada and #14 Duke to advance to the Sweet Sixteen, but fell to upstart Dayton at Pauley Pavilion in Los Angeles to finish at .770.

This year's Final Four was in Seattle at the Kingdome.

Postseason results
!colspan=6 style=| NCAA Tournament