Who is Shohei Ohtani's wife Mamiko Tanaka?

The Los Angeles Dodgers superstar's wife is an accomplished professional athlete and has gotten more comfortable in the spotlight. Get to know more about her.

Shohei Ohtani's wife Mamiko Tanaka and their dog Decoy | Jayne Kamin-Oncea-Imagn Images

(This post had been updated for the 2025 World Series.)

Shohei Ohtani keeps adding to his legacy with arguably the greatest playoff game in not only MLB history, but possibly for any professional sport.

By his side throughout it all has been his wife Mamiko Tanaka, with now their six-month-old baby daughter, which they announced in a heartfelt message back in April when Ohtani was out of the lineup to be with her, to go along with their world famous dog, Decoy.

RELATED: Ohtani's wife Mamiko has rare big smile with Dodgers WAGs before NLCS Game 3

Nov. 1, 2024; Los Angeles, CA, USA; Los Angeles Dodgers designated hitter Shohei Ohtani (17) holds his dog Decoy, as he walks with off the field his wife Mamiko Tanaka following the teams World Series Championship Celebration at Dodger Stadium. Mandatory Credit: | Jayne Kamin-Oncea-Imagn Images

What's amazing about Mamiko and her $700 million global superstar and Japanese hero is just how normal they seem to be.

Case in point, before that Game 4 for the ages in the National League Championship Series against the outmatched Milwaukee Brewers, which saw Ohtani, 31, hit three home runs, including one monster shot out of Dodgers Stadium, oh, and he threw six scoreless innings with 10 strikeouts, Shohei also mastered the dad life by walking into the game with the stroller, Mamiko and Decoy by his side.

Shohei Ohtani has the two best single-game performances in the history of baseball.

10/17/2025
3/3, 3 HR, BB
6 IP, 2 H, 0 ER, 3 BB, 10 K

9/19/2024
6/6, 4 R, 2 2B, 3 HR, 10 RBI, 2 SBpic.twitter.com/BhdqjUsOuC

— Eric Cross (@EricCrossMLB) October 19, 2025

RELATED: Ohtani’s wife Mamiko upstaged by Dodgers WAG Chelsea Freeman in matching fits

Game 4 Showtime #Shohei #Mamiko #Decoy #TheOhtanis #dodgers pic.twitter.com/wOsDY7RLHJ

— : (@MrHeismanberg) October 17, 2025

For awhile, Tanaka was rarely seen in public and not much was known about her after Ohtani announced the couple got married in February 2024.

That all changed after the Boys in Blue beat the New York Yankees to win the 2024 World Series and the four-time MVP (and reigning NL MVP) catapulted from MLB superstar to global icon.

RELATED: Ohtani’s wife Mamiko has unique look among Dodgers WAGs all-black fits

Nov 1, 2024: Dodgers' Shohei Ohtani, wife Mamiko Tanaka and their dog Decoy arrive at Dodger Stadium for the team's World Series Championship celebration. | Sandy Hooper-USA TODAY via Imagn Images

So get to know the soon-to-be mother better.

RELATED: 6-foot-4 Shohei Ohtani is tiny beside 7-foot-6 ex-college basketball player

Los Angeles Dodgers star Shohei Ohtani and his wife Mamiko Tanaka on March 14, 2024. | IMAGO / Newscom / Yonhap News

Tanaka played professional basketball back home

Tanaka was a baller in her own right, playing professionally for the Fujitsu Red Wave in the Women's Japan Basketball League until 2023. The 28-year-old power forward also competed internationally, having success while in college at Waseda University, playing for the under-24 team and winning silver for the 2017 Summer Universiade. Then, Mamiko nearly made the final roster for the 3-on-3 women's national team in the 2021 Olympic qualifying tournament.

Soon after the Dodgers won the title, a clip of her basketball highlights went viral.

RELATED: Ohtani’s wife Mamiko Tanaka dissed in Dodgers, MLB MVP celebration

Shohei Ohtani’s wife (Mamiko Tanaka) is an absolute Baller 😤🔥
pic.twitter.com/oh4KQcyclX

— LA Sports Report (@LA_SportsReport) October 30, 2024

Tanaka also stands at 5-foot-11, which is a perfect match for the extremely tall 6-foot-4 Ohtani. So the chances are their child will have both athleticism and height.

RELATED: Ohtani gives Dodgers most epic sushi meal ever with monstrous tuna

From mystery to supportive Dodgers WAG

It used to be a very rare occurrence for Tanaka to be seen publicly, especially compared to their famous dog Decoy.

That all changed as the Dodgers made their World Series run. Tanaka was there to support Ohtani alongside other Los Angeles wives like Freddie Freeman's wife Chelsea and Mookie Betts' wife Brianna, especially when they made the trip together to New York for the Fall Classic.

Mamiko Tanaka, Chelsea Freeman, and Brianna Betts before Game 3 of the World Series | Brianna Betts/Instagram

That comfortable transformation continued for the Dodgers World Series celebration, as Tanaka was front and center with Decoy throughout the festivities, much to the delight of the elated home crowd.

Nov 1, 2024: Ohtani, Mamiko Tanaka, and their dog Decoy at the World Series celebration. | Jayne Kamin-Oncea-Imagn Images

And now motherhood will increase the spotlight

In late December, Ohtani, with the help of Decoy of course, announced Tanaka was expecting on Instagram, with the adorable caption, "Can't wait for the little rookie to join our family soon!"

When Ohtani, 30, shared the news of his marriage in an IG post, he wrote in part, "I also have begun a new life with someone... who is very special to me and I wanted everyone to know I am now married."

That scrutiny will only increase with the birth of their first child together, and Tanaka will become even more of a household name.

Jayne Kamin-Oncea-Imagn Images

Jerome Miron-Imagn Images