Canajoharie is a village in the town of Canajoharie in Montgomery County, New York, USA. As of the 2010 census, the village had a population of 2,229. The name is said to be a Mohawk language term meaning "the pot that washes itself," a reference to the "Canajoharie Boiling Pot," a circular gorge in the Canajoharie Creek, just south of the village.
Canajoharie is home to one of at least three operating "dummy-lights" in the United States, located downtown at the intersection of Church, Mohawk and Montgomery Streets. It is a traffic signal on a pedestal which sits in the middle of an intersection, first installed in 1926. The other two are also located in New York State, in Beacon and Croton-on-Hudson.
The Erie Canal passes the north side of the village.
The current village is located east of the historic Canajoharie, a village of the Mohawk nation. The Mohawk Upper Castle Historic District in the former area contains the Upper Castle Church (1769) and archeological sites related to Iroquois history; it is a National Historic Landmark.
Palatine German settlers, refugees from religious wars in Europe, established a community in this area in the 1730s. It was called "Roofville" (the spelling was anglicized) after early inhabitant Johannes Rueff. The village was incorporated in 1829. During the middle of the 19th century, three fires almost obliterated the village. It was renamed Canajoharie.