The 2004–05 Iowa Hawkeyes men's basketball team represented the University of Iowa as members of the Big Ten Conference during the 2004–05 NCAA Division I men's basketball season.

The team was led by sixth-year head coach Steve Alford and played their home games at Carver–Hawkeye Arena.

They finished the season 21–12 overall and 7–9 in Big Ten play.

The Hawkeyes received an at-large bid to the NCAA tournament as #10 seed in the Austin Regional.

The season ended with an opening round loss to #7 seed Cincinnati, 76–64.