Hydrocharitales is a botanical name of an order of flowering plants. A well-known system that used this name is the Cronquist system (1981), for an order in subclass Alismatidae, with this circumscription:
- order Hydrocharitales
- family Hydrocharitaceae
![](http://up.wiki.x.io/wikipedia/commons/thumb/5/5d/Hydrocharis_morsus_ranae_L_ag1.jpg/220px-Hydrocharis_morsus_ranae_L_ag1.jpg)
The APG II system, used here, assigns most of the plants involved to the expanded order Alismatales, in the clade monocots.