Zeno John Rives (February 22, 1874 – September 2, 1939) was a U.S. Representative from Illinois.

Zeno J. Rives
Rives photographed by C. M. Bell Studio
Member of the U.S. House of Representatives from Illinois's 21st district
In office March 4, 1905 – March 3, 1907
Preceded by	Ben F. Caldwell
Succeeded by	Ben F. Caldwell
Personal details
Born	(1874-02-22)February 22, 1874 Greenfield, Indiana
Died	September 2, 1939(1939-09-02) (aged 65) Decatur, Illinois
Political party	Republican

Born near Greenfield, Indiana, Rives moved with his parents to Litchfield, Illinois, in 1880. He attended the public schools. He studied law. He was admitted to the bar in 1901 and commenced practice in Litchfield, Illinois. He was appointed city clerk in June 1903.

Rives was elected as a Republican to the Fifty-ninth Congress (March 4, 1905 – March 3, 1907). He was an unsuccessful candidate for reelection in 1906 to the Sixtieth Congress. He resumed the practice of law in Litchfield, Illinois. He was postmaster of Litchfield 1912-1916. He moved to Decatur, Illinois, in 1919, and engaged in the practice of law and also the real estate business. He died in Decatur, Illinois, September 2, 1939. He was interred in Graceland Cemetery.