Robert E. Fitch High School is a public high school located in Groton, Connecticut.

The original Fitch High School (now the former location of Fitch Middle School) was built in 1928 next to the Town Hall on Poquonock Road and was funded in part by the will of a local merchant, Charles Fitch, with the stipulation that it be named after his son - Robert E. Fitch.

In the early 1950s, the district enrollment was larger than the school could handle, so the school district decided to split to a junior high and senior high system.

In 1954, the school district built a new school, the current Robert E. Fitch Senior High School, in its current location at the top of Fort Hill Road.

It was then renamed Robert E. Fitch Junior High School.