Scarsdale High School (SHS) is a four-year public high school in Scarsdale, New York, United States, a coterminous town and village in Westchester County, New York. It is a part of the Scarsdale Union Free School District.

The school was founded in 1917. From the graduating class of 2017, 98% continued their education with college programs, and 97% entered four-year national and international colleges and universities. Twenty-four students in the class of 2024 (7%) were named National Merit Scholarship Semifinalists, and 42 (12%) students received National Merit Letters of commendation. Between 2007 and 2009, Scarsdale High School made a transition from Advanced Placement (AP) to Advanced Topics (AT) courses.

In the 2023–24 school year, SHS had a professional staff of 162 with a median teaching experience of 10 years. 100% of the faculty held a master's degree, 85% had 30 credits or more beyond a master's, and 7% had doctorate degrees.

The school is 22.3% Asian, 0.8% Black, 7.6% Hispanic, 63.0% White and 6.2% other.