Richard J. Monteith (February 7, 1932 – March 6, 2024) was an American politician from California and a member of the Republican Party.

A conservative businessman in the agriculture industry, Monteith ran for California State Senate in 1994 against three term Democratic incumbent Dan McCorquodale.

The 12th District, formerly based eastern Santa Clara County, shifted entirely into the conservative Central Valley after reapportionment, taking away McCorquodale's natural home advantage.

[2] Prevented from seeking reelection in 2002 because of state term limits, Monteith made an unsuccessful run for the Congressional seat of Gary Condit, who had been defeated in the Democratic primary by Assemblyman Dennis Cardoza.

[3] Monteith later served on the Stanislaus County Board of Supervisors, a position he held from 2006.