Jambu or jumbu may refer to:
Jambuswami (543-449 BCE), Jain monk
Jambu, a Malay/Indonesian term for various fruits, including:
jambu air, Syzygium aqueum (Watery rose apple)
jambu batu, guava
jambu bol, Syzygium malaccense (Malay rose apple)
jambu semarang, Syzygium samarangense (wax apple)
Jambul or jambu tree, Syzygium cumini
Jambu, a Brazilian term for the herb Acmella oleracea
Jambu fruit dove, a species of fruit dove (bird)
Jambu, an orca in the South Park episode "Free Willzyx"
Jambu (film), a 1980 Indian Tamil-language film, see list of Tamil films of 1980
Jambu Lochan, puported founder of the Indian city of Jammu
