Cold Spring Harbor High School is a public school for grades 7–12 in Cold Spring Harbor, New York, United States.

In 2007, it was placed 52nd on Newsweek's Top 1300 High Schools list.

There are 989 students attending grades 7–12, and there are 85 teachers working full-time at the school with 65 percent having a master's degree or higher.

[5] AP participation rate among students is 82 percent, and about 68 percent of the students were found to be proficient in math and or reading.

The graduation rate at Cold Spring Harbor High School is 95 percent.