Mei Mei () is a feminine nickname of Chinese origin, meaning "younger sister".

Mei Mei, MeiMei, Mei-Mei, Meimei, or Mei-mei may also refer to:

People Mei-mei Berssenbrugge (b. 1947), American poet MeiMei Kuo (b. 1985), Taiwanese actress Guo Meimei (b. 1991), Chinese internet celebrity

Entertainment Film and television Mei Mei, a 2009 Chinese-American short film Apple in Your Eye, a 2014 Taiwanese television series Mei Mei, a main protagonist from a 2010 American film Little Sister Mei Mei, a main protagonist from a 2011 Australian film 33 Postcards "Mei Mei", a second episode of fifth season of an American television series Hell on Wheels Simon calls River "Mei Mei" in the 2002 english television drama Firefly

Novel Mei Mei, the name of a giant panda appeared in a 2004 American novel Chinese Cinderella and the Secret Dragon Society Mei Mei, a supporting character from a 2006 Indonesian novel Sang Pemimpi , a supporting character from a Japanese light novel Hundred , a supporting character from a Japanese light novel The Apothecary Diaries

Comic , a supporting character from a Japanese manga Polar Bear Café Mei Mei (), a supporting character from a Japanese manga Jujutsu Kaisen Mei Mei, a supporting character from a Japanese manga Tokyo Aliens , a supporting character from a Japanese manga Nagasarete Airantō , a supporting character from Japanese manga series Seton Academy: Join the Pack!

Animation Mei Mei, a supporting character from an American animated series Happily Ever After: Fairy Tales for Every Child , a supporting character from Japanese anime series adaptation of manga Beyblade: Metal Fusion Mei-Mei Xiang, a supporting character from a 2020 Japanese anime Sword Art Online: Alicization – War of Underworld: Part II Xiao Mei Mei, a supporting character from a Malaysian animated series Upin & Ipin

Video game , a non-playable character from the Japanese video game Kessen II

Music , an album by Agnes Chan (1976) "", a song in that album 霉霉 (Meimei) - A Chinese nickname for singer Taylor Swift - Meimei 霉霉 in Chinese also means "Unlucky" Mei Mei – a Filipino girl group

Place Mei Mei, a coffee shop located at Borough Market in London, United Kingdom , a tea house located in Matsue, Japan

See also Mei Mei Lin

Little Sister (disambiguation), in Chinese.