The 2009–10 Hawaiʻi Rainbow Warriors basketball team represented the University of Hawaiʻi during the 2009–10 men's college basketball season. This was Bob Nash's third and final season as head coach as he was fired at the end of the season. The Warriors played their home games at the Stan Sheriff Center and competed in the Western Athletic Conference. The Rainbow Warriors finished the season 10–20 and 3–13 in WAC play to finish ninth and failed to qualify for the 2010 WAC men's basketball tournament. (en)