Black-throated Trogon was in 2024 split into four species:
- Northern Black-throated Trogon - Tropical south-eastern Honduras to extreme north-western Colombia
- Choco Black-throated Trogon - Tropical western Colombia and western Ecuador
- Amazonian Black-throated Trogon - Amazonian South America from eastern Colombia, Ecuador, and Peru to Amazonian Venezuela and the Guianas, as well as to Amazonian Brazil
- Atlantic Black-throated Trogon - northeastern Brazil to Paraguay and northeastern Argentina