Jamestown Jammers

Jamestown Jammers
1994–2014 Jamestown, New York
Minor league affiliations
Previous classes	Short-Season A
Division	Pinckney Division (1998–2014) Stedler Division (1994–1997)
Previous leagues	New York–Penn League
Major league affiliations
Previous teams	Pittsburgh Pirates (2013–2014) Florida/Miami Marlins (2002–2012) Atlanta Braves (1999–2001) Detroit Tigers (1994–1998)
Minor league titles
Division titles	1 (1994)
Team data
Previous names	Jamestown Jammers (1994–2014) Niagara Falls Rapids (1989–1993)
Mascot	Bubba Grape (2006-2014) J.J. Jammer (1994-2005) Dinger the Duck (1989-1993)
Previous parks	Russell Diethrick Park

The Jamestown Jammers were a minor league baseball team based in Jamestown, New York from 1994 until 2014. The team was the Short-Season A classification affiliate of the Pittsburgh Pirates and played in the New York–Penn League. The team played all of their home games at Russell Diethrick Park.

On August 25, 2014, a week before the end of the 2014 season, it was announced that the team would cease operations in Jamestown and be relocated to Morgantown, West Virginia, beginning in 2015. That year, the club, which is owned by Bob Rich, Jr., began play at Monongalia County Ballpark, as the West Virginia Black Bears.

The Jamestown Jammers intellectual property is separate from the franchise and survived after the minor league franchise relocated. From 2015 to 2018, the Jammers name was used for collegiate summer baseball teams.