The United States Senate special election of 1938 in New Jersey was held on November 8, 1938.
- William Warren Barbour, former U.S. Senator (1931–37)
- C. Dan Coskey, candidate for Senate in 1936
- George O. Pullen
|Republican||William Warren Barbour||309,967||89.83%|
|Republican||George O. Pullen||21,645||6.27%|
|Republican||C. Dan Coskey||13,444||3.90%|
- William Warren Barbour (Republican), former U.S. Senator
- John C. Butterworth (Socialist Labor)
- William H. J. Ely (Democrat), administrator of the New Jersey WPA
- Louis H. Kelley (Prohibition)
- William Norman (Communist)
- John Palangio (Socialist)
- Fred Turner (Townsend)
|Republican||William Warren Barbour||816,667||52.98%|
|Democratic||William H. J. Ely||704,159||45.68%|
|Prohibition||Louis H. Kelley||8,201||0.53%|
|Townsend Pension-Labor||Fred Turner||3,521||0.23%|
|Socialist Labor||John C. Butterworth||1,873||0.12%|
|Republican gain from Democratic|
- "Our Campaigns - NJ US Senate - Special R Primary Race - Sep 20, 1938". www.ourcampaigns.com.
- "Statistics of the Congressional Election of November 8, 1938" (PDF). Clerk of the United States House of Representatives. Retrieved April 23, 2020.
- "Our Campaigns - NJ US Senate - Special Election Race - Nov 08, 1938". www.ourcampaigns.com.