Hydrocharitales is a botanical name of an order of flowering plants. The Cronquist system (1981) used this name for an order in subclass Alismatidae, with this circumscription:
- order Hydrocharitales
- family Hydrocharitaceae
The APG II system, used here, assigns most of the plants involved to the expanded order Alismatales, [1] in the clade monocots.