蛇頸龜屬（学名：Chelus）为蛇頸龜科的一个属。
本属包括以下物种：[1]
- 哥伦比亚蛇颈龟 Chelus colombianus Wood, 1976
- 楓葉龜 Chelus fimbriata (Schneider, 1783)
- 奥利诺科玛塔龟 Chelus orinocensis Vargas-Ramírez, Caballero, Morales-Betancourt, Lasso, Amaya, Martînez, Silva-Viana, Vogt, Pires-Farias, Hrbek, Campbell & Fritz, 2020[2]
Mario Vargas-Ramírez, Susana Caballero, Mónica A. Morales-Betancourt, Carlos A. Lasso, Laura Amaya, José Gregorio Martínez, Mariadas Neves Silva Viana, Richard C. Vogt, Izeni Pires Farias, Tomas Hrbek, Patrick D. Campbell and Uwe Fritz. 2020. Genomic Analyses reveal Two Species of the Matamata (Testudines: Chelidae: Chelus spp.) and Clarify Their Phylogeography. Molecular Phylogenetics and Evolution. In Press, 106823. DOI: 10.1016/j.ympev.2020.106823
