{{Officeholder
|name=John Jennings, Jr.
|image=
|party=[[Republican]]
|spouse=Pearnie Ethel Hamby
|religion=
|offices=
{{Officeholder/representative
|state=Tennessee
|district=2nd
|terms=December 30, 1939 – January 3, 1951
|preceded=[[J. Will Taylor]]
|former=y
|succeeded=[[Howard Baker, Sr.]]
}}
}}
'''John Jennings, Jr.''' (June 6, 1880 – February 27, 1956) was a [[Tennessee]] [[Republican]] who represented the state's 2nd congressional district mostly during the 1940s, succeeding [[James Willis Taylor]], who died in office. He was previously a delegate to the Republican National Conventions three times during the 1910s, in addition to being a special assistant to the [[United States Attorney General]].