Knox District School No. 5

Knox District School No. 5 is a historic one-room school building located within Thompson's Lake State Park in the town of Knox in Albany County, New York. It was built in 1898 and is a one-story 20 by rectangular frame building on a dry laid stone foundation. School use ceased in 1940, and it has been vacant since 1999.

It was listed on the National Register of Historic Places in 2005.