Tom Izzo (IPA-en??zo?pron; born January 30, 1955) is an American college basketball coach. Since 1995, he has been the head coach for the Michigan State Spartans mens basketball team, presiding over a prolonged period of success in the programs history.

Under Izzo, the Michigan State program has been one of the most successful in the country. Izzo has led the Spartans to the 2000 NCAA Division I National Championship (2000 in sports#Basketball), six Final Fours, and six Big Ten (Big Ten Conference) Championships in his first 15 years at Michigan State. The winningest coach in school history, Izzos teams have been invited to the past 13 consecutive NCAA tournaments (NCAA Mens Division I Basketball Championship), in addition to setting the Big Ten record for the longest home winning streak. These accomplishments led analyst Andy Katz at ESPN to deem Michigan State the top college basketball program for the decade from 1998 to 2007.

Currently the longest tenured coach in the Big Ten Conference, Izzo, whose teams are often recognized for their rebounding prowess and defensive tenacity, has won four national coach of the year awards and maintains a considerable coaching tree?several of his former assistants are currently head coaches at other Division I schools. He currently holds a record of 18-8 versus rival Michigan, although five U-M wins were vacated (University of Michigan basketball scandal),making his official record against Michigan 18-3, because vacated wins do not count as wins or losses for either team involved. Izzo considered a coaching position with the Cleveland Cavaliers in the National Basketball Association. However after consulting the decision with his family and close friends and not being able to speak with LeBron James, Izzo decided to reject the Cleveland Cavaliers offer and remain at Michigan State.