Ralph William Roscoe Eltse (September 13, 1885 – March 18, 1971) was an American lawyer and politician who served one term as a U.S. Representative from California from 1933 to 1935.

Eltse was elected as a Republican to the Seventy-third Congress (March 4, 1933 – January 3, 1935).

He resumed the practice of law, and resided in Berkeley until his death on March 18, 1971.

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

This article about a member of the United States House of Representatives from California is a stub.