How Many Grand Slams Has Naomi Osaka Won?

Naomi Osaka (born October 16, 1997) is a Japanese professional tennis player.

Naomi Osaka has won 4 Grand Slams.

Australian Open2 – 2019, 2021
US Open2 – 2018, 2020
Australian Open: Japan's Celebrations Rocket Into Orbit As Naomi Osaka's  Win Takes Off | Tennis News
ResultYearTournamentSurfaceOpponentScore
Win2018US OpenHard Serena Williams6–2, 6–4
Win2019Australian OpenHard Petra Kvitová7–6(7–2), 5–7, 6–4
Win2020US Open (2)Hard Victoria Azarenka1–6, 6–3, 6–3
Win2021Australian Open (2)Hard Jennifer Brady6–4, 6–3