蓝果树科（学名：Nyssaceae），又称喜树科，包括珙桐属和喜树属等属。

Nyssaceae was a small family of flowering trees now included within the dogwood family (Cornaceae). Nyssaceae commonly included the following genera:

At least one other extinct genus Mastixicarpum, very similar to Diplopanax, is known from fossil evidence.