Batavia is a city in and the county seat of Genesee County, New York, United States. It is near the center of the county, surrounded by the Town of Batavia, which is a separate municipality. Its population as of the 2010 census was 15,465. The name Batavia is Latin for the Betuwe region of the Netherlands, and honors early Dutch land developers. In 2006, a national magazine ranked Batavia third among the nation's micropolitans based on economic development.The New York State Thruway passes north of the city. Genesee County Airport is also north of the city.
The city hosts the Batavia Muckdogs baseball club of the Perfect Game Collegiate Baseball League, at Dwyer Stadium. The Muckdogs formerly were an affiliate of the Miami Marlins. They won the 2008 New York Penn League Championship.
Its UN/LOCODE is USBIA.