Tampoi or Tampoy can refer to:
- Tampoi
- Baccaurea macrocarpa, a tropical fruit tree found in Southeast Asia
- Tampoi, Johor, a suburb of Johor Bahru, Malaysia
- Tampoy
- Syzygium jambos, an ornamental and fruit tree of Southeast Asia
- Tampoy, part of the City of Malolos, Philippines