Cortland is a city in Cortland County, New York, USA. As of the 2000 census, the city had a population of 18,740. It is the county seat of Cortland County.
The City of Cortland, near the west border of the county, is surrounded by the Town of Cortlandville.
The city is within the former Central New York Military Tract. The city is named after Pierre Van Cortlandt the first Lieutenant Governor of the State of New York.