Blue tree may refer to:
Blue Tree, a New York City boutique owned by actress Phoebe Cates Bluetree, a Northern-Irish Christian band Blue Tree Phuket, a community center in Phuket, Thailand The Blue Trees, a 2000 album by Welsh band Gorky's Zygotic Mynci The Blue Trees (Dimopoulos), a performance and installation artwork by Konstantin Dimopoulos
See also Blue ash Fraxinus quadrangulata, a type of tree Blue spruce Picea pungens, a type of tree Aoki (surname), a Japanese surname meaning "blue tree"