Gary Martin Allenson is an American former Major League Baseball catcher and coach and minor league manager. In 2017, he spent a second stint as manager of the New Hampshire Fisher Cats of the Double-A Eastern League, after serving the previous three seasons in that role with the Triple-A Buffalo Bisons of the International League. Both are affiliates of the Toronto Blue Jays.

The New Hampshire Fisher Cats are a Minor League Baseball team based in Manchester, New Hampshire. The team, which plays in the Eastern League, is the Double-A affiliate of the Toronto Blue Jays major league club.