2012 FINA World Swimming Championships (25 m) – Women's 100 metre backstroke

The women's 100 metre backstroke event at the 11th FINA World Swimming Championships (25m) took place 12 – 13 December 2012 at the Sinan Erdem Dome.

Records
Prior to this competition, the existing world and championship records were as follows.

No new records were set during this competition.

Heats
67 swimmers participated in 7 heats.

Semifinals
16 swimmers participated in 2 heats.

Final
The final was held at 19:59.