Tappan is a hamlet and census-designated place in the town of Orangetown, New York, United States. It is located northwest of Alpine, New Jersey, north of Northvale, New Jersey and Rockleigh, New Jersey, northeast of Old Tappan, New Jersey, east/southeast of Nauraushaun and Pearl River, south of Orangeburg, southwest of Sparkill, and west of Palisades; Tappan shares a border with each. The population was 6,673, according to the 2020 census.