"Time After Time" is a 1983 song by American singer-songwriter Cyndi Lauper, co-written with Rob Hyman, who also provided backing vocals. It was the second single released from her debut studio album, She's So Unusual (1983). The track was produced by Rick Chertoff and released as a single in March 1984. The song became Lauper's first number 1 hit in the U.S. The song was written in the album's final stages, after "Girls Just Wanna Have Fun", "She Bop" and "All Through the Night" had been written or recorded. The writing began with the title, which Lauper had seen in TV Guide magazine, referring to the science fiction film Time After Time (1979).

Cynthia Ann Stephanie Lauper is an American singer, songwriter, actress, and activist. Her career has spanned over 40 years. Her album She's So Unusual (1983) was the first debut album by a female artist to achieve four top-five hits on the Billboard Hot 100—"Girls Just Want to Have Fun", "Time After Time", "She Bop", and "All Through the Night"—and earned Lauper the Best New Artist award at the 27th Annual Grammy Awards in 1985. Her success continued with the soundtrack for the motion picture The Goonies (1985) and her second record True Colors (1986). This album included the number-one single "True Colors" and "Change of Heart", which peaked at number three. In 1989, Lauper saw success with "I Drove All Night" and in 1993, had her first dance club hit with "That's What I Think".