It's the 23 year-old's fourth Grand Slam title.
Naomi Osaka's won the Australian Open tennis for the second time - and claimed her fourth Grand Slam title.
Japan's third seed beat first-time Slam finalists Jennifer Brady 6-4, 6-3.
Fans were in attendance in Melbourne and Osaka says that made the occasion more special:
Superstition or luck? 🤔
— #AusOpen (@AustralianOpen) February 20, 2021
Whatever it is, it's working 💯@naomiosaka | #AO2021 | #AusOpen pic.twitter.com/2dSmM2QY4c