Smithtown is a station on the Port Jefferson Branch of the Long Island Rail Road. It is located off a low bridge over NY 25 – 25A along Redwood Lane between NY 25 – 25A and Landing Avenue in Smithtown, New York.

Smithtown station was originally built in 1873 by Charles Hallett of Riverhead for the Smithtown and Port Jefferson Railroad. In 1937, the station was rebuilt, and the grade crossing at Main Street (NY 25/NY 25A) immediately west of the station was eliminated. A freight spur exists west of the bridge under Brooksite Drive.

The station contains a mural along the track side of the station called "Nissequogue Passages," by Robert Carioscia, which was sponsored by the Smithtown Township Arts Council in 1989.

This station has two high-level side platforms, each 12 cars long. On either end of the station, however, the tracks merge. Most trains utilize Platform B, with select trains using Platform A to allow two trains to bypass each other through the station.

• Smithtown – LIRR
• Smithtown LIRR timetable
• Smithtown Station from NY 25-25A Bridge; Winter 1984
• Smithtown Station from NY 25-25A Bridge; December 6, 2006
• POST Interlocking (The LIRR Today)
• Smithtown, Long Island, Train Station (Maggie Blanck.com)
• Main Street entrance from Google Maps Street View