Ticonderoga High School is a historic high school building located at Ticonderoga in Essex County, New York.

It was built in 1928-1930 and is a three-story, masonry neo-Georgian style building with a slate roof, concrete foundation, and brick walls.

It features a semi-circular portico with Corinthian order columns and a balustrade and a copper polygonal cupola.

[3] It was listed on the National Register of Historic Places in 1988.

[2] As of 2021[update], the building is still in use as the sole public high school operated by the Ticonderoga Central School District.