There were three elections in 1999 to the United States House of Representatives:
Elections are listed by date and district.
|- ! | Newt Gingrich | | Republican | 1978 | | Incumbent won reelection, but resigned at the end of the previous Congress, and declined to be seated at the current Congress.<br/>New member elected February 23, 1999.<br/>Republican hold. | nowrap |
|- ! | Bob Livingston | | Republican | 1977 | | Incumbent resigned March 1, 1999.<br/>New member elected May 29, 1999.<br/>Republican hold. | nowrap |
|- ! | George Brown Jr. | | Democratic | 1972 | | Incumbent died July 15, 1999.<br/>New member elected November 16, 1999.<br/> Democratic hold. | nowrap |