Codonacanthus is a genus of flowering plants belonging to the family Acanthaceae.^[1]

Codonacanthus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Acanthaceae
Genus:	Codonacanthus Nees (1847)

Its native range is Assam through Indochina and southern China to Japan.^[1]

Species:^[1]

• Codonacanthus pauciflorus (Nees) Nees
• Codonacanthus sanjappae Karthig., Sumathi, Jayanthi & D.Naras.
• Codonacanthus spicatus Hand.-Mazz.