Amycolatopsis nalaikhensis is an actinobacterium from the genus Amycolatopsis that has been isolated from a coal mining site soil in Mongolia (Nalaikh coal mining site, Nalaikh, Mongolia). Amycolatopsis nalaikhensis showed broad antifungal activity against several filamentous fungi and also antibacterial activity against methicillin-resistant Staphylococcus aureus and Acinetobacter baumannii. It was first described by Oyuntsetseg and Kim in 2024.