Macrocalamus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Serpentes
Family:	Colubridae
Subfamily:	Calamariinae
Genus:	Macrocalamus Günther, 1864

Macrocalamus is a genus of snakes of the family Colubridae.

The genus Macrocalamus is endemic to the Malay Peninsula.^[1]

The following eight species are recognized as being valid.^[1]

• Macrocalamus chanardi David & Pauwels, 2005 – Chanard’s reed snake
• Macrocalamus emas Quah, Anuar, L. Grismer, Wood & Nor, 2019 – golden-bellied reed snake
• Macrocalamus gentingensis Yaakob & Lim, 2002 – Genting Highlands reed snake
• Macrocalamus jasoni Grandison, 1972 – Jason's reed snake, Jason's mountain reed snake
• Macrocalamus lateralis Günther, 1864 – side-blotched reed snake, Malayan mountain reed snake, striped reed snake
• Macrocalamus schulzi G. Vogel & David, 1999 – Schulz's reed snake
• Macrocalamus tweediei Lim, 1963 – Tweedie's reed snake, Tweedie's mountain reed snake
• Macrocalamus vogeli David & Pauwels, 2005 – Vogel's reed snake

• Boulenger GA (1894). Catalogue of the Snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xi + 382 pp. + Plates I–XX. (Genus Macrocalamus, p. 327; species M. lateralis, p. 327).
• Günther ACLG (1864). The Reptiles of British India. London: The Ray Society. (Taylor and Francis, printers). xxvii + 452 pp. + Plates I–XXVI. (Macrocalamus, new genus, p. 198; M. lateralis, new species, p. 199 + Plate XVIII, figure D).
• Vogel G, David P (1999). "A revision of the genus Macrocalamus (Serpentes: Colubridae), with description of a new species and a key to the genus". Raffles Bulletin of Zoology 47 (2): 309–332. (Macrocalamus schulzi, new species).