Mei Yamaguchi
山口 芽生

Country (sports)	Japan
Born	(1999-06-14) 14 June 1999 (age 25) Saitama, Japan
Plays	Right (two-handed backhand)
Prize money	US$66,907
Singles
Career record	174–131
Career titles	2 ITF
Highest ranking	No. 261 (10 February 2025)
Current ranking	No. 261 (14 March 2025)
Doubles
Career record	20–26
Highest ranking	No. 649 (26 July 2021)
Last updated on: 4 November 2024.

Mei Yamaguchi (山口 芽生, Yamaguchi Mei, born 14 June 1999) is a Japanese tennis player.

Yamaguchi has a career-high singles ranking of 261 by the WTA, achieved on 10 february 2025, and a best WTA doubles ranking of 649, set in July 2021.^[1]

Yamaguchi made her WTA Tour main-draw debut at the 2024 Toray Pan Pacific Open, losing to Bianca Andreescu in the first round.^[2]

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Feb 2019	ITF Nanchang, China	W15	Clay (i)	Lu Jiaxi	6–7(3), 2–6
Win	1–1	Jul 2021	ITF Amarante, Portugal	W15	Hard	Federica Rossi	6–4, 3–6, 6–4
Win	2–1	Nov 2024	ITF Hamamatsu, Japan	W35	Carpet	Aoi Ito	4–6, 5–3 ret.

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Mar 2019	ITF Nanchang, China	W15	Clay (i)	Ma Yexin	Guo Hanyu Zheng Wushuang	0–6, 1–6
Loss	0–2	Jan 2020	ITF Hong Kong	W25	Hard	Momoko Kobori	Mana Ayukawa Eudice Chong	4–6, 3–6

• Mei Yamaguchi at the Women's Tennis Association
• Mei Yamaguchi at the International Tennis Federation