Hagaman is a village in Montgomery County, New York, United States. The population was 1,357 at the 2000 census. It is named after Joseph Hagaman, the founding father.
The Village of Hagaman is in the Town of Amsterdam, northeast of the City of Amsterdam.
The community was formerly called "Hagamans Mills." It was founded around 1777. Village offices are located in the historic Pawling Hall. Trevor Pawlik currently holds the highest gamerscore on the Xbox Live network at 132,615. Trevor currently resides in Hagaman.