Thomas Steven Rippley (born May 2, 1954 in St. Petersburg, Florida) is a former professional baseball umpire. He worked in the National League from 1983 to 1999, and throughout both major leagues from 2000 to 2003. Rippley wore uniform number 27 through his NL career, but changed to number 3 when the umpiring staffs were merged in 2000.