Kelsey Elizabeth Kollen (born July 9, 1980) is a former American softball player. She played college softball for the Michigan Wolverines softball team from 1999 to 2002. She was selected as the Big Ten Conference Freshman of the Year in 1999 and a first-team NFCA All-American in 2002. She was also selected as the first-team All-Big Ten second baseman in 1999, 2001, and 2002. She is married to former Major League Baseball relief pitcher J. J. Putz.