Mari Osaka

is a Japanese fashion designer,

In her career, she reached four ITF finals. She is the older sister of Naomi Osaka, with whom she has collaborated on several fashion design and art projects.

Biography Osaka was born in Japan to a Japanese mother and a Haitian father; shortly thereafter, the family moved to Long Island, New York. She grew up in Fort Lauderdale.

Osaka made her WTA Tour debut at the 2014 Bank of the West Classic, in the doubles event partnering with Marina Shamayko, losing in the first round to the pair Varvara Lepchenko and Ajla Tomljanović.

She made her WTA Tour singles debut at the 2019 Miami Open, having received a wildcard into the main draw, but lost to Whitney Osuigwe. Osaka announced retirement from professional tennis in early 2021.

Since retirement, she has focused on her art and fashion design, including co-designing her sister Naomi's Met Gala look in fall 2021. Osaka's previous artistic work includes creating custom-designed COVID masks for UNICEF and illustrating the cover for GQ Japan's June 2020 edition featuring her sister.

In January 2024, Osaka accused her father, Leonard François, of long-term physical abuse.

ITF Circuit finals Singles: 4 (4 runner–ups) Legend $25,000 tournaments $10,000 tournamentsFinals by surfaceHard (0–2)Clay (0–2)