Parks & Recreation had many running gags that became quite memorable, among them the many names Jerry Gergich (Jim O’Heir) was given, but many viewers missed how the show revealed his real name earlier than most remember. Throughout seven seasons, the audience got to meet Leslie Knope (Amy Poehler) and her crew from the Pawnee Parks Department quite well, while also seeing their dynamics with each other change and grow stronger. Although Leslie was the lead character in Parks & Recreation, the series made sure to share the spotlight with her friends and coworkers, among them Jerry.

https://screenrant.com/parks-recreation-jerry-real-name-revealed-earlier/