- Source: N66
N66 may refer to:
Roads
N66 road (Ireland)
Calamba–Pagsanjan Road, in the Philippines
Nebraska Highway 66, in the United States
Other uses
N66 (Long Island bus)
HMS Unity (N66), a submarine of the Royal Navy
Oneonta Municipal Airport, in Otsego County, New York, United States
See also
66N (disambiguation)