Jojo, JoJo or Jo Jo is a given name, surname, nickname or stage name used by several people and fictional characters, including:
Musicians
- JoJo (born 1990), American singer and actress
- Jojo (Bengali singer), Bengali singer
- Miss Jojo, Rwandan R&B singer Josiane Uwineza (born 1983)
- JoJo Billingsley (1952–2010), American singer, soloist and songwriter
- Jojo Garza, American musician, member of Los Lonely Boys
- JoJo Hailey (born 1971), American R&B singer Joel Hailey, half of K-Ci & JoJo and Jodeci
- John Hermann, American musician, keyboardist for Widespread Panic
- Joseph Hoo Kim (born 1942), Jamaican reggae record producer
- Jo Jo Laine (1953–2006), American singer, model, actress, and rock groupie
- Jojo Mason (born 1990), Canadian country music singer-songwriter
- Jojo Mayer (born 1963), Swiss drummer
- Jonathan Richman (born 1951), American proto-punk singer-songwriter
- Joseph Simmons (born 1964), stage name Rev. Run or DJ Run, a founding member of the hip hop group Run–D.M.C.
- JoJo Siwa (born 2003), American dancer, singer and actress
Sports people
- JoJo (wrestler), American WWE ring announcer Joseann Alexie Offerman (born 1994)
- Jojó (born 1970), Mozambican retired footballer
- JoJo Dickson (born 1989), player in the Canadian Football League
- JoJo Domann (born 1997), American football player
- Jojo Duncil (born 1983), Philippine Basketball Association player
- Jo Jo English (born 1970), American former National Basketball Association player, top scorer in the 1999-2000 Israel Basketball Premier League.
- Jojo Lastimosa (born 1964), former Philippine Basketball Association player
- Jo-Jo Moore (1908–2001), American Major League Baseball player
- JoJo Offerman (born 1994), American professional wrestler, singer. and actress
- Jojo Ogunnupe (born 1992), Nigerian footballer
- JoJo Polk (born 1978), American former Arena Football League player
- Jo-Jo Reyes (born 1984), American Major League Baseball pitcher
- JoJo Romero (born 1996), American Major League Baseball pitcher
- JoJo Starbuck (born 1951), American figure skater
- Jojo Tangkay (born 1976), Philippine basketball player
- Jo-Jo Townsell (born 1960), American National Football League player, member of the Hall of Fame
- Jo Jo White (1946–2018), American basketball player
- Jo-Jo White (1909–1986), American baseball player
- Jonatan Christie (born 1997), Indonesian badminton player
- Jo Jo Pascua (born 1965), Filipino professional boxer
- Jójó (footballer, born 2001), Cape Verdean footballer
Other people
- Jo-Jo The Dog-Faced Boy, Fedor Jeftichew, Russian–American sideshow performer of the late 1800s
- Jawed Ahmad (1986–2009), Afghan reporter imprisoned by the American military in 2007, then released without explanation in 2008
- Jejomar Binay (born 1942), Philippine Vice-President and former mayor of Makati
- Jojo Chintoh (born c. 1944), Canadian television journalist
- JoJo Fletcher (born 1990), American reality TV star on The Bachelorette Season 12
- Jo Frost (born 1971), British nanny and TV personality of Supernanny fame, who addresses herself to children as "Jo-Jo"
- Jojo Lapus (1945–2006), Filipino show business columnist and screenwriter
- Jojo Moyes (born 1969), British romance novelist and journalist
- Paquito Ochoa, Jr. (born 1960), Filipino politician and lawyer
- JoJo Savard, Canadian self-proclaimed psychic
- JoJo Wright, American radio host
- Jojo Rabbit, a 2019 American satirical comedy-drama film
- Jojo Andrews (1956–1982), American professional wreslter
- Joey Jo-Jo Junior Shabadoo, a minor character from The Simpsons animated sitcom ("The Last Temptation of Homer" episode)
- Jojo, a protagonist in the musical Seussical, as well as the book Horton Hears a Who!, on which the musical was partly based
- Jo Jo Dancer, the title character, played by Richard Pryor, in the film Jo Jo Dancer, Your Life Is Calling
- JoJo Tickle, main character of JoJo's Circus, an American children's television show
- Jojo, a food critic character in the Papa Louie games by Flipline Studios.
- John Joseph "Jo Jo" McCann, main character of Looking After Jo Jo, a 1998 BBC Scotland television series
- Jojo Harte, on the Irish television series Raw (2008–2013)
- Mojo Jojo, a simian character in the American animated television show The Powerpuff Girls
- Every protagonist in the Japanese manga series JoJo's Bizarre Adventure
- Jonathan Joestar, the protagonist of Phantom Blood
- Joseph Joestar, the protagonist of Battle Tendency
- Jotaro Kujo, the protagonist of Stardust Crusaders
- Josuke Higashikata, the protagonist of Diamond is Unbreakable (the suke (助) in the Japanese name may also be pronounced as "Jo")
- Giorno Giovanna, the protagonist of Golden Wind (sometimes stylized as GioGio)
- Jolyne Cujoh, the protagonist of Stone Ocean
- Johnny Joestar, the protagonist of Steel Ball Run
- Josuke 'Gappy' Higashikata, the protagonist of JoJolion (named after the previous protagonist of Diamond is Unbreakable)
- Jodio Joestar, the protagonist of The JOJOLands
- Jojo Khalastra, on The Comedy Store Israeli television show
- Jojo, in the Beatles song "Get Back"
- Jojo the Kissing Bandit, in the Avatar: The Last Airbender trading card game
- Granny Jojo Watterson, a pink rabbit character in the American animated television show The Amazing World of Gumball
- Jojo, main character of the Belgian comic series Jojo created by André Geerts
- Johannes "Jojo" Betzler, the young protagonist of Jojo Rabbit, a comedy-drama film
- JoJo, one of the titular characters in British TV series JoJo & Gran Gran
- Jojo, one of the students in animated TV series Ollie's Pack
- Jojo, daughter of Rachel, and the niece of Maddie and Tom Wachowski from Sonic the Hedgehog film series.