Tumbu refers to:

• Junior Tumbu, nickname for Lamin Conteh (b. 1976), retired Sierra Leonean international footballer
• Tumbu, a cultivar of Karuka
• Tumbu fly (Cordylobia anthropophaga) a species of blow fly
• Tumbu liquor, another name for palm wine
• Tumbu, Sierra Leone, a settlement, see Tombo
• Tumbu John, a Software Engineer and IT Consultant.