Mount Marion is a hamlet in the Town of Saugerties, Ulster County, New York, United States.

The community is 3.2 miles (5.1 km) south-southwest of the village of Saugerties.

It is also 6.8 miles (10.9 km) east of the town of Woodstock.

Mount Marion has a post office with ZIP code 12456.

This article about a location in Ulster County, New York is a stub.