Pengmarengo is a genus of spiders in the family Salticidae.
The genus Pengmarengo is found in China and Indonesia, with three species occurring in China and two species in Indonesia (Borneo, Java, and Sumatra).
The genus name is a combination of the related genus Marengo and arachnologist (). P. yangi is named after Yuanfa Yang, one of the collectors of the species.
, this genus includes six species: