There were two elections to the United States House of Representatives to serve in the 99th United States Congress.
List of elections
Elections are listed by date and district.
| District | Incumbent | This race | |||
|---|---|---|---|---|---|
| Member | Party | First elected | Results | Candidates | |
| Louisiana 8 | Gillis William Long | Democratic | 1962 | Incumbent died January 20, 1985. New member (see Widow's succession) elected March 30, 1985. Democratic hold. |
|
| Texas 1 | Sam B. Hall | Democratic | 1976 (special) | Incumbent resigned May 27, 1985 to become a U.S. District Judge. New member elected August 3, 1985. Democratic hold. |
|
