Grant M. DePorter (born November 7, 1964) is a restaurateur from Chicago, U.S., who came to prominence in 2004 after he paid US$113,824.16 for a baseball which had played a role in the Chicago Cubs defeat in the 2003 National League Championship Series, and had the ball destroyed in a nationally televised event. The event was an attempt to end the "Curse of the Billy Goat" – which has supposedly prevented the Cubs from winning the National League since 1945 – and also helped raise a substantial amount of money for diabetes research.
DePorter graduated from the Latin School of Chicago in 1983. He then graduated from the Cornell University School of Hotel Administration, and also holds an MBA from Duke University. He has worked in, managed or owned over thirty restaurants. He is the President and Managing Partner of Harry Caray's Restaurant Group, which owns seven restaurants, the best-known being Harry Caray's Italian Steakhouses in the Chicago area (named after the late Hall of Fame baseball announcer Harry Caray). The restaurants have won several awards, including been voted the best steakhouse in Chicago and the best sports restaurant in the United States.