Gregory Michael Hansell (born March 12, 1971) is an American former baseball pitcher.

Hansell played for four different major league ballclubs during his career: the Los Angeles Dodgers (1995), Minnesota Twins (1996), Milwaukee Brewers (1997), and Pittsburgh Pirates (1999).

He made his major league debut on April 28, 1995, and played his final game on October 3, 1999.

On December 7, 1999, Hansell was purchased from the Pittsburgh Pirates by the Hanshin Tigers of the Japan Central League.

This biographical article relating to an American baseball pitcher born in the 1970s is a stub.