Ann-Margret Olsson (born April 28, 1941), known professionally simply as Ann-Margret, is a Swedish-American actress, singer, and dancer.

As an actress, Ann-Margret is best known for her roles in Bye Bye Birdie (1963), Viva Las Vegas (1964), The Cincinnati Kid (1965), Carnal Knowledge (1971), Tommy (1975), Grumpy Old Men (1993), and Grumpier Old Men (1995). She has won five Golden Globe Awards and been nominated for two Academy Awards, two Grammy Awards, a Screen Actors Guild Award, and six Emmy Awards.

In 2010, Ann-Margret won her first Emmy Award for her guest appearance on Law & Order: Special Victims Unit. Her singing and acting careers span five decades, starting in 1961; initially, she was billed as a female version of Elvis Presley. She had a minor hit in 1961 and a charting album in 1964, and scored a disco hit in 1979. In 2001, she recorded a critically acclaimed gospel album, and an album of Christmas songs from 2004 continues to be available.