Hastings High School (HHS) is a comprehensive public high school and the only high school of the Hastings-on-Hudson Union Free School District in Westchester County, New York. The principal is Andrew Clayman.

In 2015, Hastings High School was ranked 162nd on Newsweek's ranking of the top US high schools.

Hastings High School was a recipient of the U.S. Department of Education's National Blue Ribbon Award for excellence for 2001–2002 and for 2016–2017.

Hastings High School received a $10,000 grant from a division of the National Broadcasting Corporation to put on a production of Hairspray.

• Stephen Collins, actor
• Libby Copeland, reporter for the Washington Post
• Ricki Lake (born 1968), actress, television presenter and producer
• Ali Marpet (born 1993), American football center for the Tampa Bay Buccaneers of the National Football League (NFL)
• Robert Meeropol (born 1947), son of Ethel and Julius Rosenberg
• Dave Rice (born c. 1940), college football coach
• Benh Zeitlin (born 1982), filmmaker, composer, and animator
• John Dehner (born 1915), stage, radio, film, and television actor
• Edmund Phelps (born 1933), recipient of Nobel Prize in Economics

The school's lack of ethnic diversity has been commented on.

• "HHS Home Page"
• "HHS Newspaper"