1963 United States House of Representatives elections

Six members of the United States House of Representatives were elected in special elections in 1963.

List of elections
! California's 1st congressional district
 * Clement W. Miller
 * | Democratic
 * 1958
 * | Incumbent member-elect had died October 7, 1962, but was posthumously re-elected. New member elected January 22, 1963. Republican gain.
 * nowrap | ✅ Donald H. Clausen (Republican) 54.20%

William F. Grader (Democratic) 44.66%

John C. Stuart (Democratic) 1.14%

! California's 23rd congressional district
 * Clyde Doyle
 * | Democratic
 * 1944 1946 (Lost) 1948
 * | Incumbent died March 14, 1963. New member elected June 11, 1963. Republican gain.
 * nowrap | ✅ Del M. Clawson (Republican) 53.19%

Carley V. Porter (Democratic) 35.37%

Maurice H. Quigley (Democratic) 4.69%

Armand R. Porter (Democratic) 2.67%

James E. Christo (Democratic) 1.41%

Lynn W. Johnston (Democratic) 1.41%

! Pennsylvania's 15th congressional district
 * Francis E. Walter
 * | Democratic
 * 1932
 * | Incumbent died May 31, 1963. New member elected July 30, 1963. Democratic hold.
 * nowrap | ✅ Fred B. Rooney (Democratic) 53.55%

Robert Bartlett (Republican) 46.45%

! North Dakota's 1st congressional district
 * Hjalmar C. Nygaard
 * | Republican
 * 1960
 * | Incumbent died July 18, 1963. New member elected October 22, 1963. Republican hold.
 * nowrap | ✅ Mark Andrews (Republican) 49.09%

John Hove (Democratic-NPL) 44.30%

John W. Scott (Conservative Republican) 6.25%

! Pennsylvania's 23rd congressional district
 * Leon H. Gavin
 * | Republican
 * 1942
 * | Incumbent died September 15, 1963. New member elected November 5, 1963. Republican hold.
 * nowrap | ✅ Albert W. Johnson (Republican) 58.41%

William T. Hagerty (Democratic) 41.60%

! Texas's 10th congressional district
 * Homer Thornberry
 * | Democratic
 * 1948
 * | Incumbent resigned December 20, 1963, to become judge of the U.S. District Court for the Western District of Texas. New member elected December 21, 1963. Democratic hold.
 * nowrap | ✅ J. J. Pickle (Democratic) 62.91%

Jim Dobbs (Republican) 37.09


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