Swimming at the 1980 Summer Olympics – Women's 100 metre backstroke
The women's 100 metre backstroke event at the 1980 Summer Olympics was held on 22 and 23 July at the Swimming Pool at the Olimpiysky Sports Complex.Records
Prior to this competition, the existing world and Olympic records were as follows.
The following records were established during the competition:
| Date | Event | Name | Nationality | Time | Record |
| 22 July | Heat 4 | Rica Reinisch | | 1:01.50 | , |
| 23 July | Final | Rica Reinisch | | 1:00.86 | , |
Results
Heats
Final
