thumb|Member of the Zosteraceae Najadales is a botanical name of an order of flowering plants.
A well-known system that used this name is the Cronquist system (1981), that used this name for an order in subclass Alismatidae with this circumscription:
order Najadales
family Aponogetonaceae
family Scheuchzeriaceae
family Juncaginaceae
family Potamogetonaceae
family Ruppiaceae
family Najadaceae
family Zannichelliaceae
family Posidoniaceae
family Cymodoceaceae
family Zosteraceae
The APG II system, used here, assigns the plants involved to the expanded order Alismatales, in the clade 'monocots'.
