Alfredo James Pacino (; Italian: [paˈtʃiːno]; born April 25, 1940) is an American actor. Considered one of the greatest and most influential actors of the 20th century, he has received numerous accolades: including an Academy Award, two Tony Awards, and two Primetime Emmy Awards, making him one of the few performers to have achieved the Triple Crown of Acting. He has also been honored with the Cecil B. DeMille Award in 2001, the AFI Life Achievement Award in 2007, the National Medal of Arts in 2011, and the Kennedy Center Honors in 2016.

A method actor, he studied at HB Studio and the Actors Studio, where he was taught by Charlie Laughton and Lee Strasberg. Pacino went on to receive the Academy Award for Best Actor for his role in Scent of a Woman (1992). His other Oscar-nominated roles include The Godfather (1972), Serpico (1973), The Godfather Part II (1974), Dog Day Afternoon (1975), and ...And Justice for All (1979), Dick Tracy (1990), Glengarry Glen Ross (1992), and The Irishman (2019). Other notable films include The Panic in Needle Park (1971), Author! Author! (1982), Scarface (1983), The Godfather Part III (1990), Carlito's Way (1993), Heat (1995), Donnie Brasco (1997), The Devil's Advocate (1997), The Insider (1999), Insomnia (2002), Jack and Jill (2011), Once Upon a Time in Hollywood (2019) and House of Gucci (2021).

On television, Pacino has acted in several productions for HBO, including Angels in America (2003) and the Jack Kevorkian biopic You Don't Know Jack (2010), winning a Primetime Emmy Award for Outstanding Lead Actor in a Miniseries or a Movie for each. Pacino starred in the Amazon Video series Hunters (2020–2023). He has also had an extensive career on stage. He is a two-time Tony Award winner, winning Best Featured Actor in a Play in Does a Tiger Wear a Necktie? (1969) and Best Actor in a Play for The Basic Training of Pavlo Hummel (1977).

Pacino made his filmmaking debut with the documentary Looking for Richard (1996); Pacino had played the lead role on stage in 1977. He has also acted as Shylock in a 2004 feature film adaptation and 2010 stage production of The Merchant of Venice. Pacino directed and starred in Chinese Coffee (2000), Wilde Salomé (2011), and Salomé (2013). Since 1994, he has been the joint president of the Actors Studio.