# Swimming at the 1980 Summer Olympics – Women's 4 × 100 metre medley relay

The women's 4 × 100 metre medley relay event at the 1980 Summer Olympics was held on 20 July at the Swimming Pool at the Olimpiysky Sports Complex.

## Records

Prior to this competition, the existing world and Olympic records were as follows.
| World record | East Germany (GDR) Ulrike Richter (1:02.23) Hannelore Anke (1:10.15) Andrea Pollack (59.53) Kornelia Ender (56.04) | 4:07.95 | Montreal, Canada | 18 July 1976 |
| Olympic record | East Germany (GDR) Ulrike Richter (1:02.23) Hannelore Anke (1:10.15) Andrea Pollack (59.53) Kornelia Ender (56.04) | 4:07.95 | Montreal, Canada | 18 July 1976 |
The following records were established during the competition:
| Date | Event | Name | Nationality | Time | Record |
| 20 July | Final | Rica Reinisch (1:01.51) Ute Geweniger (1:09.46) Andrea Pollack (1:00.14) Caren Metschuck (55.56) | East Germany | 4:06.67 | WR, OR |

## Results
### Heats

| Rank | Heat | Nation | Swimmers | Time | Notes |
| 1 | 2 | East Germany | Rica Reinisch (1:01.95) Ute Geweniger (1:09.66) Andrea Pollack (1:01.04) Sarina Hülsenbeck (56.24) | 4:08.89 | Q |
| 2 | 1 | Great Britain | Helen Jameson (1:05.59) Margaret Kelly (1:11.10) Ann Osgerby (1:01.91) June Croft (57.69) | 4:16.29 | Q |
| 3 | 2 | Soviet Union | Elena Kruglova (1:05.21) Elvira Vasilkova (1:10.02) Irina Aksyonova (1:03.11) Olga Klevakina (58.12) | 4:16.46 | Q |
| 4 | 2 | Sweden | Annika Uvehall (1:07.18) Eva-Marie Håkansson (1:11.80) Agneta Mårtensson (1:02.79) Tina Gustafsson (58.17) | 4:19.94 | Q |
| 5 | 2 | Italy | Laura Foralosso (1:06.09) Sabrina Seminatore (1:13.05) Cinzia Savi Scarponi (1:03.57) Monica Vallarin (58.98) | 4:21.69 | Q |
| 6 | 1 | Australia | Lisa Forrest (1:04.89) Lisa Curry (1:15.13) Karen Van de Graaf (1:03.54) Rosemary Brown (59.77) | 4:23.33 | Q |
| 7 | 1 | Bulgaria | Stoianka Dyngalakova (1:06.50) Tanya Bogomilova (1:13.51) Ani Moneva (1:04.95) Dobrinka Mincheva (58.73) | 4:23.69 | Q |
| 8 | 1 | Romania | Carmen Bunaciu (1:03.85) Brigitte Prass (1:14.31) Mariana Paraschiv (1:12.00) Irinel Pănulescu (53.92) | 4:24.08 | Q |
| 9 | 2 | Mexico | Teresa Rivera (1:04.54) Elke Holtz (1:14.58) Dagmar Erdman (1:08.33) Helen Plaschinski (58.50) | 4:25.95 | |
| 10 | 2 | Belgium | Yolande Van Der Straeten (1:05.61) Brigitte Bosmans (1:16.89) Carine Verbauwen (1:04.38) Pascale Verbauwen (59.45) | 4:26.33 | |

### Final

| Rank | Nation | Swimmers | Time | Notes |
| | East Germany | Rica Reinisch (1:01.51) =WR Ute Geweniger (1:09.46) Andrea Pollack (1:00.14) Caren Metschuck (55.56) | 4:06.67 | WR |
| | Great Britain | Helen Jameson (1:04.60) Margaret Kelly (1:09.95) Ann Osgerby (1:01.77) June Croft (55.92) | 4:12.24 | |
| | Soviet Union | Elena Kruglova (1:04.60) Elvira Vasilkova (1:10.10) Alla Grishchenkova (1:02.72) Natalya Strunnikova (56.19) | 4:13.61 | |
| 4 | Sweden | Annika Uvehall (1:06.45) Eva-Marie Håkansson (1:11.25) Agneta Mårtensson (1:02.06) Tina Gustafsson (57.15) | 4:16.91 | |
| 5 | Italy | Laura Foralosso (1:04.20) Sabrina Seminatore (1:12.91) Cinzia Savi Scarponi (1:02.61) Monica Vallarin (59.33) | 4:19.05 | |
| 6 | Australia | Lisa Forrest (1:04.59) Lisa Curry (1:13.61) Karen Van de Graaf (1:03.07) Rosemary Brown (58.63) | 4:19.90 | |
| 7 | Romania | Carmen Bunaciu (1:03.37) Brigitte Prass (1:14.23) Mariana Paraschiv (1:04.46) Irinel Pănulescu (59.21) | 4:21.27 | |
| 8 | Bulgaria | Stoianka Dyngalakova (1:06.23) Tanya Bogomilova (1:12.39) Ani Moneva (1:04.91) Dobrinka Mincheva (58.85) | 4:22.38 | |