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Dilleniales is the botanical name of an order of flowering plants. The Cronquist system, of 1981, recognized such order and placed it in subclass Dilleniidae. It used the following circumscription:

• order Dilleniales

  family Dilleniaceae

  family Paeoniaceae

The APG II system, of 2003, assigns the first of these families to the core eudicots, unplaced as to order, although APG II debates either including it in order Caryophyllales or reinstating the order Dilleniales.

The APG II system assigns the second of these families to the order Saxifragales.