Jack and Jill is a traditional English nursery rhyme.

Jack and Jill, Jack & Jill, or Jack n Jill may also refer to:

• Jack and Jill (1917 film), an American Western silent film
• Jack and Jill: A Postscript, a 1970 Australian film
• Jack and Jill (1998 film), a Canadian anti-romantic comedy film
• Jack and Jill (2011 film), an American comedy film
• Jack N' Jill, 2022 Indian science-fiction film by Santhosh Sivan
• Jack & Jill (TV series), a 1999–2001 American comedy-drama series

• Jack & Jill (comics), a 1954–1985 British children's comics magazine
• Jack and Jill (magazine), an American bimonthly magazine for children
• Jack & Jill (novel), a 1996 Alex Cross novel by James Patterson
• Jack and Jill: A Village Story, an 1880 children's book by Louisa May Alcott

• "Jack and Jill" (Raydio song), 1978
• "Jack and Jill", a 1969 song by Tommy Roe

• Jack and Jill of America, an African American leadership group
• Jack and Jill Foundation, a British support group, founded by Jonathan Irwin, for families of children with disabilities
• Jack and Jill Ice Cream, an American ice cream truck company
• Jack and Jill School, an elementary school in Bacolod, Negros Occidental, Philippines

• Jack and Jill (dance), a format of competition in partner dancing
• Jack and Jill (party), a Canadian fundraiser for an engaged couple
• Jack and Jill bathroom, a bathroom between two bedrooms
• Clayton Windmills, nicknamed Jack and Jill, near Clayton, West Sussex, England
• Jack 'n jill, a snack brand owned by Universal Robina Corporation in the Philippines