The Ogren Park at Allegiance Field is a sporting venue in Missoula, Montana. It is mostly used for playing baseball, with its newly completed ballpark.

The Ogren Park at Allegiance Field is the home of the Missoula Osprey Pioneer League baseball team. It was built on a reclaimed sawmill site. It was initially opened in 2004 after a series of construction delays and setbacks.
Originally called the Play Ball Park, taking after the team ownership group, the Ogren Park at Allegiance Field was completed slowly but surely. Its structures were replaced with permanent one through time as it gains more funding. By 2007, it was nearly complete with the majority of the structures completed. It was then renamed to Ogren Park at Allegiance Field after the naming rights owners.