Stewart Armstrong Copeland (born July 16, 1952) is an American musician and composer. He is best known for his work as the drummer of the English rock band The Police from 1977 to 1986, and again from 2007 to 2008. Before playing with the Police, he played drums with English rock band Curved Air from 1975 to 1976.

As a composer, Copeland's work includes the scores of the films Wall Street, Men at Work, Good Burger, and We Are Your Friends; the theme music for television shows The Equalizer, The Amanda Show, and Dead Like Me; and the scores for video games in the Spyro series and Alone in the Dark: The New Nightmare. He has also written pieces for ballet, opera, and orchestra.

According to MusicRadar, Copeland's "distinctive drum sound and uniqueness of style has made him one of the most popular drummers to ever get behind a drumset". He was ranked the 10th best drummer of all time by Rolling Stone in 2016. He was inducted into the Rock and Roll Hall of Fame as a member of the Police in 2003, the Modern Drummer Hall of Fame in 2005, and the Classic Drummer Hall of Fame in 2013.