| Event: | Mixed indoor doubles tennis |
| Games: | 1912 Summer |
| Dates: | 6–7 May 1912 (first round) 8 May 1912 (quarterfinals) 9 May 1912 (semifinals) 12 May 1912 (final) |
| Competitors: | 10 teams |
| Nations: | 5 |
| Gold: | Edith Hannam Charles Dixon |
| Goldnoc: | GBR |
| Silver: | Helen Aitchison Herbert Roper Barrett |
| Silvernoc: | GBR |
| Bronze: | Sigrid Fick Gunnar Setterwall |
| Bronzenoc: | SWE |
| Type: | olympics1912 |
| Quadrennial: | yes |
| Multi: | yes |
| After Year: | 1920 |
The indoor mixed doubles competition at the 1912 Summer Olympics was part of the tennis program for the games. The competition was held from May 6, 1912 to May 12, 1912.