Karner is a hamlet of the town of Colonie, Albany County, New York, United States.

Once called Center Station, it was a stop along the New York Central Railroad (NYCRR) that became famous for being the site where the Karner Blue butterfly was first identified.

Karner started as Center Station along the New York Central Railroad's (NYCRR) tracks.

George Karner, in the mid-to-late 19th century, bought the land that would become the hamlet and laid out streets and lots, though most did not sell.

[2] The common name of the butterfly is named after the hamlet, because it was here that Vladimir Nabokov first identified the species and used the specimens located in the Albany Pine Bush as the type specimen for the identification of the entire species.