Almario Vernard "Mario" Chalmers (born May 19, 1986 in Anchorage, Alaska) is an American professional basketball player for the Miami Heat of the NBA. He was selected 34th overall in the 2008 NBA Draft by the Minnesota Timberwolves. Chalmers played for the University of Kansas in college for three seasons, including the 2007–08 national championship team, shooting the final shot of regulation to send the game against the Memphis Tigers into overtime, with Kansas eventually winning the game.

In the 2006–2007 Big 12 Coaches Awards, Chalmers was named Co-Defensive Player of the Year with Marcus Dove of Oklahoma State. Chalmers was also voted on the All Big 12 Third Team, and the All Big 12 Defensive Team.

In the 2007–2008 season, Chalmers was named Big 12 All-Defensive First Team and All Big 12 Second Team. He was also named Most Outstanding Player of the 2008 NCAA Championship.