Otis Halbert Holmes (February 22, 1902 – July 27, 1977) was a U.S. Representative from Washington state, serving a total of eight consecutive terms, from 1943 to 1959.

Starting his career as a teacher and academic, Holmes also became a livestock rancher in Eastern Washington.

He attended graduate school at Columbia University, New York City, where he earned his degree in 1927.

Holmes died in Yakima, Washington, July 27, 1977, and was buried in Terrace Heights Memorial Park.

This article incorporates public domain material from the Biographical Directory of the United States Congress