Liza May Minnelli (/ˈlaɪzə/ LY-zə; born March 12, 1946) is an American actress, singer, and dancer. Known for her commanding stage presence and powerful alto singing voice, Minnelli has received numerous accolades, including an Academy Award, a BAFTA Award, an Emmy Award, two Golden Globe Awards, and four Tony Awards. She is one of the few performers awarded a non-competitive EGOT having received two honorary Grammy Awards. Minnelli is a Knight of the French Legion of Honour.

Minnelli's parents were actress and singer Judy Garland and director Vincente Minnelli. After moving to New York City in 1961, she began her career as a musical theatre actress, nightclub performer, and traditional pop artist. She made her professional stage debut in the Off-Broadway revival of Best Foot Forward (1963). She became known for her collaborations with John Kander and Fred Ebb, and later won the Tony Award for Best Actress in a Musical for her roles in the Broadway musicals Flora the Red Menace (1965) and The Act (1978). She was Tony-nominated for The Rink (1984). She won Special Tony Awards for Liza at the Winter Garden (1974) and Liza at the Palace! (2009).

On film, she had her breakthrough performance in the drama film The Sterile Cuckoo (1969), earning her a nomination for the Academy Award for Best Actress. She later received the award playing Sally Bowles in the musical film Cabaret (1972), which brought her to international prominence. She starred in a string of films such as Lucky Lady (1975), New York, New York (1977), Arthur (1981), Rent-a-Cop (1988), and Stepping Out (1991). On television, she had a career resurgence as a recurring guest star on the sitcom Arrested Development (2003–2013).

Her concert performances at Carnegie Hall in 1979 and 1987 and at Radio City Music Hall in 1991 and 1992 are recognized among her most successful. From 1988 to 1990, she toured with Frank Sinatra and Sammy Davis Jr. in Frank, Liza & Sammy: The Ultimate Event. Minnelli is known for her renditions of American standards and is known for her signature songs which include ("New York, New York", "Cabaret", and "Maybe This Time"). Throughout her later years, she has suffered serious health problems and avoided huge concerts in favor of small retrospective performances. Her life was profiled in the 2024 documentary, Liza: A Truly Terrific Absolutely True Story.

Minnelli was born on March 12, 1946, at the Cedars of Lebanon Hospital in Hollywood. She is the daughter of Judy Garland and Vincente Minnelli. Her parents named her after Ira Gershwin's song "Liza (All the Clouds'll Roll Away)". Minnelli has a half-sister, Lorna, and half-brother, Joey, from Garland's marriage to Sid Luft. She has another half-sister, Christiane Nina Minnelli (nicknamed Tina Nina), from her father's second marriage. Minnelli's godparents were Kay Thompson and Ira Gershwin.

Minnelli's first performing experience on film was at age three, appearing in the final scene of the musical In the Good Old Summertime (1949); the film stars Garland and Van Johnson. In 1961, she moved to New York City, attending High School of Performing Arts and later, Chadwick School.

During 1961, Minnelli was an apprentice at the Cape Cod Melody Tent in Hyannis, Massachusetts. She appeared in the chorus of Flower Drum Song and played the part of Muriel in Take Me Along. She began performing professionally at the age of 17 in 1963 in an Off-Broadway revival of the musical Best Foot Forward, for which she received the Theatre World Award, and also toured in The Fantasticks, opposite Elliott Gould.

The next year, her mother invited her to perform with her in concert at the London Palladium. Both concerts were recorded and released as an album. Minnelli attended Scarsdale High School for one year, starring in a production of The Diary of Anne Frank that then went to Israel on tour. She turned to Broadway at 19, and won her first Tony Award as a leading actress for Flora the Red Menace. It was the first time that she worked with the musical pair John Kander and Fred Ebb.