The Kalamazoo Growlers are a baseball team based in Kalamazoo, Michigan, that plays in the Northwoods League, a summer collegiate baseball league. The Growlers were founded in 2013 and played their first game on May 28, 2014, losing to the then defending league champion Madison Mallards 6-2. The Growlers played their first home game on May 30, 2014, beating the Battle Creek Bombers 13-3. The team plays its home games at Homer Stryker Field.

The Northwoods League is a collegiate summer baseball wooden bat league. All players in the league must have NCAA eligibility remaining in order to participate. The league is amateur, and players are not paid, so as to maintain their college eligibility. Graduated senior pitchers are also eligible to play in the Northwoods League. Each team may have four of these players at a time.