Reply 1997 (Korean: 응답하라 1997; RR: Eungdaphara 1997) is a 2012 South Korean television series that centers on the lives of six friends in Busan, as the timeline moves back and forth between their past as 18-year-old high schoolers in 1997 and their present as 33-year-olds at their high school reunion dinner in 2012, where one couple will announce that they're getting married. As the first installment of the Reply series, it also portrays the extreme fan culture that emerged in the 1990s when first generation idol groups such as H.O.T. and Sechs Kies took center stage and K-pop was just beginning to blossom.

The series was one of the highest-rated Korean dramas in cable television history, and has garnered praise from audiences and critics for being well-researched, refreshing, genuine, and full of humor and heart.