Saturday Night can refer to:

• Saturday Night, a 1950s Broadway musical by Stephen Sondheim.
• Saturday Night , a movie by James Benning based on the musical
• Saturday Night Magazine, a Canadian magazine
• "Saturday Night" was the original name of the show we know today as Saturday Night Live, which explains the familiar opening catchphrase "Live from New York, it's Saturday Night!" Before the first episode in 1975, Lorne Michaels had to change the name because of a conflict with an existing (and subsequently short-lived) show on another network called "Saturday Night Live with Howard Cosell".