Chatham Borough High School was a public high school that existed until 1988 in Chatham Borough, in Morris County, in the U.S. state of New Jersey.
The borough's board of education informed the Chatham Township in 1953 district that the high school would not be able to accommodate township students after the 1959-60 school year, leading the township's board of education to consider establishing a regional district or constructing its own high school.
[1] Voters in Chatham Township approved the building of a high school in September 1960, with a referendum to spend $1,750,000 in a bond offering passing by a 4-1 margin and completion expected in time for the 1962-63 school year.
[2] Chatham Township High School opened to students in September 1962 for grades seven through nine, with students still in Chatham Borough High School completing their education there.
[8] The baseball team won the North II Group I state sectional final in 1970 and won the Group I state title in 1979, defeating Burlington Township High School in the finals of the tournament.