Tea tree may refer to:

• Camellia sinensis (aka Thea sinensis), from which black, green, oolong and white tea are all obtained
• Melaleuca species in the family Myrtaceae, sources for tea tree oil
• Leptospermum, also in the family Myrtaceae, source for Mānuka honey
• Kunzea ericoides, known as White tea-tree or kānuka, a tree or shrub of New Zealand
• Taxandria parviceps, also in the family Myrtaceae
• species of Lycium, including
  • Lycium europaeum or European teatree
  • Lycium barbarum or Duke of Argyll's Tea Tree
• Cordyline australis, known as tī tree in Māori

• Tea Tree, the former name of Ti-Tree, Northern Territory, a town and locality in Australia
• Tea Tree Gully, a council in Adelaide, Australia
• Westfield Tea Tree Plaza, a shopping centre in Adelaide, Australia
• Tea Tree, Tasmania, a locality in Southern Tasmania

• Ti-Tree (disambiguation)