Lewis Hobart Sweetser (January 13, 1868 – June 9, 1944) was a Republican politician from Idaho.

Born in San Francisco,[1] he attended the University of California, Class of 1889, where he was a member of Chi Phi fraternity, and Yale University.

He was a member of the Idaho State House of Representatives from 1901 to 1902 and from 1905 to 1906.

[4] He was partner with George and Harry Burroughs, brothers of Edgar Rice Burroughs, in a cattle ranch named the "Bar Y" in the valley of the Raft River, a post office there named Yale, and later in 1893 the Sweetser-Burroughs Mining Company that dredge mined the Snake River for gold.

[6] Sweetser and the Burroughs Brothers had been contemporaries at Yale University, and the "Bar Y", the boat, and the post office were named after it.