Most Grand Slam singles titles won (female, open era)
- Who
- Serena Williams
- What
- 23 total number
- Where
- Australia (Melbourne)
- When
- 28 January 2017
The most Grand Slam singles titles won (female, open era) is 23, achieved by Serena Williams (USA) at the Australian Open in Melbourne, Australia, on 28 January 2017.
Serena moves past Steffi Graf's record of 22 Grand Slam titles after she beat her sister Venus 6-4 6-4 in the Australian Open final.