Jaclyn is an American streamlined spelling of Jacqueline, the French feminine form of Jacques, which goes back to the Hebrew Jacob and means "supplanter" or "holder of the heel". Actress Jaclyn Smith of Charlie's Angels made this spelling popular in the late 1970s. Jaclyn ranked 452 among US girls in 2000, left the top 1000 in the 2010s and has slipped from number 1457 in 2015 to number 2790 in 2025.