Zeno John Rives (born February 22, 1874) was a Republican politician who represented the state of Illinois in the United States House of Representatives. Serving as a member of Congress for Illinois’s 21st Congressional District, he held office as a Representative during the early twentieth century, participating in national legislative affairs for a single term.

Rives began his congressional service on December 4, 1905, and served until March 3, 1907. During this period, he was identified with the Republican Party and took part in the work of the House as a historical member of Congress from Illinois. His tenure in office lasted one term, after which he left Congress and is recorded as a former Representative. While specific committee assignments, legislative initiatives, and later activities are not documented in the available metadata, his service from 1905 to 1907 places him among the early twentieth-century federal lawmakers representing Illinois’s 21st District.