Lemuel Willard Royse (January 19, 1847 – December 18, 1946) was an American lawyer, jurist, and politician who served two terms as a U.S. Representative from Indiana from 1895 to 1899.

Born near Pierceton, Indiana, Royse attended the common schools.

He served as prosecuting attorney for the thirty-third judicial circuit of Indiana in 1876.

He died in Warsaw, Indiana, December 18, 1946, one month shy of his 100th birthday.

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