Emperor Go-Kōgon (後光厳天皇 Go-Kōgon-tennō) was the 4th of the Ashikaga Pretenders during the Period of the Northern and Southern Courts.

According to pre-Meiji scholars, his reign spanned the years from 1352 through 1371.

This Nanboku-chō "sovereign" was named after his father Emperor Kōgon and go- (後), translates literally as "later;" and thus, he may be called the "Later Emperor Kōgon". The Japanese word "go" has also been translated to mean the "second one;" and in some older sources, this would-be emperor may be identified as "Kōgon, the second", or as "Kōgon II".