Calamaria battersbyi, also known commonly as Battersby's reed snake, is a species of snake in the subfamily Calamariinae of the family Colubridae. The species is endemic to Kalimantan, the Indonesian portion of the island of Borneo.
The specific name, battersbyi, is in honor of British herpetologist James Clarence Battersby.
Calamaria battersbyi exhibits the following diagnostic characters. The mental contacts the anterior chin shields. A preocular is present. Each ventral has a dark anterior half and a light posterior half.
Calamaria battersbyi is terrestrial.
Calamaria battersbyi is oviparous.