Oyster Bay High School is a public high school located in Oyster Bay, New York, United States. The school is a part of the Oyster Bay-East Norwich Central School District. As of the 2014-15 school year, the school had an enrollment of 759 students and 69.1 classroom teachers (on an FTE basis), for a student–teacher ratio of 11.0:1. There were 115 students (15.2% of enrollment) eligible for free lunch and 18 (2.4% of students) eligible for reduced-cost lunch.