Fred Rostek
- 2012 – Texas’ 4th congressional district (W/I) – lost
Daniel David Rostenkowski
- 1958 – Illinois’ 8th congressional district (D) – won
- 1960 – Illinois’ 8th congressional district (D) – won
- 1962 – Illinois’ 8th congressional district (D) – won
- 1964 – Illinois’ 8th congressional district (D) – won
- 1966 – Illinois’ 8th congressional district (D) – won
- 1968 – Illinois’ 8th congressional district (D) – won
- 1970 – Illinois’ 8th congressional district (D) – won
- 1972 – Illinois’ 8th congressional district (D) – won
- 1974 – Illinois’ 8th congressional district (D) – won
- 1976 – Illinois’ 8th congressional district (D) – won
- 1978 – Illinois’ 8th congressional district (D) – won
- 1980 – Illinois’ 8th congressional district (D) – won
- 1982 – Illinois’ 8th congressional district (D) – won
- 1984 – Illinois’ 8th congressional district (D) – won
- 1986 – Illinois’ 8th congressional district (D) – won
- 1988 – Illinois’ 8th congressional district (D) – won
- 1990 – Illinois’ 8th congressional district (D) – won
- 1992 – Illinois’ 5th congressional district (D) – won
- 1994 – Illinois’ 5th congressional district (D) – lost
Grant Rostig
- 2006 – Texas’ 25th congressional district (R) – lost
William E. Rostrom
- 1970 – Michigan’s 16th congressional district (R) – lost
- 1972 – Michigan’s 16th congressional district (R) – lost
- 1976 – Michigan’s 16th congressional district (R) – lost
Harry C. Rote
- 1936 – Pennsylvania’s 10th congressional district (Comm.) – lost
Jon Rotenberg
- 1974 – Massachusetts’ 4th congressional district (I) – lost
Charles E. Roth
- 1936 – Pennsylvania’s 14th congressional district (R) – lost
Charles H. Roth
- 1928 – New York’s 42nd congressional district (S) – lost
David Roth
- 2006 – California’s 45th congressional district (D) – lost
- 2022 – United States Senate (Idaho) (D) – lost
Kent Roth
- 1982 – Kansas’ 1st congressional district (D) – lost
Norman H. Roth
- 1954 – New Jersey’s 13th congressional district (R) – lost
- 1956 – New Jersey’s 13th congressional district (R) – lost
Phil J. Roth
- 1956 – Oregon’s 3rd congressional district (R) – lost
Richard S. Roth
- 1978 – New Jersey’s 11th congressional district (L) – lost
- 1980 – New Jersey’s 11th congressional district (L) – lost
- 1982 – New Jersey’s 11th congressional district (L) – lost
- 1992 – New Jersey’s 11th congressional district (L) – lost
- 2002 – New Jersey’s 11th congressional district (L) – lost
- 2006 – New Jersey’s 11th congressional district (L) – lost
Samuel Roth
- 1986 – New York’s 13th congressional district (CON) – lost
Tobias Anton Roth
- 1978 – Wisconsin’s 8th congressional district (R) – won
- 1980 – Wisconsin’s 8th congressional district (R) – won
- 1982 – Wisconsin’s 8th congressional district (R) – won
- 1984 – Wisconsin’s 8th congressional district (R) – won
- 1986 – Wisconsin’s 8th congressional district (R) – won
- 1988 – Wisconsin’s 8th congressional district (R) – won
- 1990 – Wisconsin’s 8th congressional district (R) – won
- 1992 – Wisconsin’s 8th congressional district (R) – won
- 1994 – Wisconsin’s 8th congressional district (R) – won
W.A. Jack Roth
- 1980 – California’s 16th congressional district (R) – lost
William Victor Roth, Jr.
- 1966 – Delaware’s at large congressional district (R) – won
- 1968 – Delaware’s at large congressional district (R) – won
- 1970 – United States Senate (Delaware) (R) – won
- 1976 – United States Senate (Delaware) (R) – won
- 1982 – United States Senate (Delaware) (R) – won
- 1988 – United States Senate (Delaware) (R) – won
- 1994 – United States Senate (Delaware) (R) – won
- 2000 – United States Senate (Delaware) (R) – lost
Steven Rothacker
- 1992 – Texas’ 4th congressional district (L) – lost
- 1994 – Texas’ 4th congressional district (L) – lost
- 1996 – Texas’ 4th congressional district (L) – lost
Joe Rothbauer
- 2002 – Wisconsin’s 7th congressional district (R) – lost
Gabriel Rothblatt
- 2014 – Florida’s 8th congressional district (D) – lost
Jo Rothenberg
- 1992 – Minnesota’s 4th congressional district (SW) – lost
Joseph Rothenberg
- 1976 – New York’s 11th congressional district (Liberal) – lost
Yvonne Rothenberg
- 1998 – New York’s 25th congressional district (D, Liberal/G) – lost
Abraham H. Rothermel
- 1928 – Pennsylvania’s 14th congressional district (D) – lost
Keith James Rothfus
- 2010 – Pennsylvania’s 4th congressional district (R) – lost
- 2012 – Pennsylvania’s 12th congressional district (R) – won
- 2014 – Pennsylvania’s 12th congressional district (R) – won
- 2016 – Pennsylvania’s 12th congressional district (R) – won
- 2018 – Pennsylvania’s 17th congressional district (R) – lost
Chris Rothfuss
- 2008 – United States Senate (Wyoming) (D) – lost
Paul A. Rothfuss
- 1932 – Pennsylvania’s 16th congressional district (D) – lost
- 1934 – Pennsylvania’s 16th congressional district (D) – lost
- 1936 – Pennsylvania’s 16th congressional district (D, FL, Royal Oak, Nonpartisan) – lost
- 1938 – Pennsylvania’s 16th congressional district (D) – lost
- 1950 – Pennsylvania’s 15th congressional district (D) – lost
Robert C. Rothhouse
- 1980 – New Jersey’s 2nd congressional district (L) – lost
Geri Rothman-Serot
- 1992 – United States Senate (Missouri) (D) – lost
Melvyn M. Rothman
- 1962 – New York’s 13th congressional district (R) – lost
Mike Rothman
- 1998 – Illinois’ 8th congressional district (D) – lost
Steven R. Rothman
- 1996 – New Jersey’s 9th congressional district (D) – won
- 1998 – New Jersey’s 9th congressional district (D) – won
- 2000 – New Jersey’s 9th congressional district (D) – won
- 2002 – New Jersey’s 9th congressional district (D) – won
- 2004 – New Jersey’s 9th congressional district (D) – won
- 2006 – New Jersey’s 9th congressional district (D) – won
- 2008 – New Jersey’s 9th congressional district (D) – won
- 2010 – New Jersey’s 9th congressional district (D) – won
Earl W. Rothrock
- 1922 – Pennsylvania’s 21st congressional district (SL) – lost
John Williams Rothrock, Jr.
- 1978 – Indiana’s 6th congressional district (L) – lost
Beryl E. Rothschild
- 1992 – Ohio’s 11th congressional district (R) – lost
Stephan ‘Steve’ Rothstein
- 1994 – Texas’ 28th congressional district (L) – lost
Vincent J. Rotondo
- 1974 – Rhode Island’s 2nd congressional district (R) – lost
Andrew Rotstein
- 1976 – Michigan’s 6th congressional district (Labor) – lost
Harley Edwin Rouda, Jr.
- 2018 – California’s 48th congressional district (D) – won
- 2020 – California’s 48th congressional district (D) – lost
Richard Lowell Roudebush
- 1960 – Indiana’s 6th congressional district (R) – won
- 1962 – Indiana’s 6th congressional district (R) – won
- 1964 – Indiana’s 6th congressional district (R) – won
- 1966 – Indiana’s 10th congressional district (R) – won
- 1968 – Indiana’s 5th congressional district (R) – won
- 1970 – United States Senate (Indiana) (R) – lost
Albert Rouis
- 1962 – New Jersey’s 1st congressional district (SL) – lost
Margaret S. Roukema
- 1978 – New Jersey’s 7th congressional district (R) – lost
- 1980 – New Jersey’s 7th congressional district (R) – won
- 1982 – New Jersey’s 5th congressional district (R) – won
- 1984 – New Jersey’s 5th congressional district (R) – won
- 1986 – New Jersey’s 5th congressional district (R) – won
- 1988 – New Jersey’s 5th congressional district (R) – won
- 1990 – New Jersey’s 5th congressional district (R) – won
- 1992 – New Jersey’s 5th congressional district (R) – won
- 1994 – New Jersey’s 5th congressional district (R) – won
- 1996 – New Jersey’s 5th congressional district (R) – won
- 1998 – New Jersey’s 5th congressional district (R) – won
- 2000 – New Jersey’s 5th congressional district (R) – won
George Roulsen
- 1934 – Virginia’s 2nd congressional district (S) – lost
Doug Roulstone
- 2006 – Washington’s 2nd congressional district (R) – lost
Marion Michael Rounds
- 2014 – United States Senate (South Dakota) (R) – won
- 2020 – United States Senate (South Dakota) (R) – won
Orville W. Roundtree
- 1936 – Washington’s 3rd congressional district (Christian) – lost
William Roundtree
- 1984 – United States Senate (Michigan) (Workers World) – lost
- 1994 – United States Senate (Michigan) (WW) – lost
- 1996 – United States Senate (Michigan) (Workers World) – lost
B. T. Rountree
- 1932 – Kentucky’s at large congressional district (R) – lost
Philip E. Roupe
- 1992 – Michigan’s 1st congressional district (R) – lost
Russell A. Rourke
- 1974 – New York’s 36th congressional district (R, CON) – lost