Who are Japanese tennis star Naomi Osaka’s parents?
Naomi Osaka is playing top tennis again after a slump in her career. She has reached the quarterfinals at Wimbledon and could go all the way.


At 28 years old, Naomi Osaka, the Japanese-born, US-raised tennis star is a four-time Grand Slam winner.
Osaka was born in Osaka, Japan to a Japanese mother and a Haitian-born father in 1997. She later moved to the US she moved to the US when she was 3 years old.
Growing up, Osaka – who has dual citizenship - lived on Long Island before moving to Florida with her family.
Who are Naomi Osaka’s parents?
The 4-time Grand Slam winner’s parents are Tamaki Osaka and Leonard Francois.
Francois is the one who encouraged his daughters Naomi and Mari to pursue tennis, using instructional books and DVDs at first.
‘I don’t remember liking to hit the ball. The main thing was that I wanted to beat my sister. For her, it wasn’t a competition. Every day I’d say, “I’m going to beat you tomorrow”,’ Osaka once told the New York Times.
Her parents also inspired her to play for Japan. ‘My dad thought that since I grew up around my mom and I have a lot of Japanese relatives… I don’t know… I don’t necessarily feel like I’m American. I wouldn’t know what that feels like,’ she told the NYT.
Instead of taking their father’s last name, Osaka and her sister use their mother’s Japanese name.
Tamaki met Francois in Japan when she was in high school and he was in college. The two dated in secret for years, and Tamaki’s family didn’t speak to her for about a decade and a half when they learned of her relationship with Francois. The couple moved to Long Island to live with Francois’ family when Naomi was a child. But the family reconnected with Tamaki’s family in 2008.
Naomi Osaka defeats the world No. 1 Aryna Sabalenka to advance to the quarterfinals‼️ pic.twitter.com/jsqaxvgheP
— ESPN (@espn) July 5, 2026
Mari Osaka
Naomi’s older sister Mari is also a tennis player and the two sisters are extremely close and best friends off the court.
Naomi Osaka is her ✨ pic.twitter.com/UTJzt8ohU1
— Wimbledon (@Wimbledon) June 29, 2026
Why does Osaka represent Japan?
Despite having grown up in the US the majority of her life, she represents Japan in international tournamants such as the Olympics
In 2019, the athlete announced she would relinquish her US citizenship in order to represent Japan, telling Japanese broadcaster NHK, per the BBC’s translation: ‘It is a special feeling to aim for the Olympics as a representative of Japan.
‘I think that playing with the pride of the country will make me feel more emotional.’
Osaka began representing Japan in junior tournaments when she was just 10 years old. ‘We made the decision that Naomi would represent Japan at an early age,’ Osaka’s parents told the publication. ‘She was born in Osaka and was brought up in a household of Japanese and Haitian culture.’
Champion on and off the court
Since defeating Serena Williams in a highly contentious US Open final in 2018, Osaka has gone on to show the world she’s a champion both on and off the court, signing numerous fashion partnerships with luxury brands like Tag Heuer and becoming one of tennis’ most vocal supporters for racial justice.
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