Tappan is a hamlet and census-designated place in the town of Orangetown, Rockland County, New York, United States. The population was 6,613 at the 2010 census.
The Tappan tribe were a Lenape people who inhabited the region radiating from the Hudson Palisades and theNew York – New Jersey Highlands at the time of European colonization in the 17th century. The first Orange County courthouse was built in 1691 in Tappan, though by 1737, sessions alternated between Tappan and Goshen. The first school house in Rockland County was built in 1711 in Tappan. It was used as a school until 1860. There would not be another school in the county until late in the 18th century. The Orangetown Resolutions were adopted in 1774 at the home and inn of Loyalist Yoast Mabie. The house was a Dutch colonial built by his cousin Casparus Mabie in Tappan when Great Britain increased its taxes on tea and crops, prompting protest from local patriots on Monday, July 4, 1774, two years to the date before the Declaration of Independence. Loyalist Yoast Mabie's home, known as "Mabie's Inn", was the place of confinement in 1780 of British Major John André, who plotted with American General Benedict Arnold to surrender West Point to the British. Today the house is a restaurant, operating daily as The Old 76 House.