Steven Vincent Buscemi (, Italian: [buʃˈʃɛːmi]; born December 13, 1957) is an American actor. Buscemi is known for his work as an acclaimed character actor of the 1990s. His early credits consist of major roles in independent film productions such as Parting Glances (1986), Mystery Train (1989), In the Soup (1992), and his breakout role as Mr. Pink in Quentin Tarantino's Reservoir Dogs (1992).

Buscemi has appeared in independent and mainstream films including Living in Oblivion (1995), Desperado (1995), Con Air (1997), Armageddon (1998), Ghost World (2001), Big Fish (2003), and The Death of Stalin (2017). Buscemi has often collaborated with the Coen brothers, appearing in Miller's Crossing (1990), Fargo (1996), and The Big Lebowski (1998). He also appeared in supporting or cameo roles in many films with Adam Sandler including Airheads (1994), Billy Madison (1995), The Wedding Singer (1998), Mr. Deeds (2002), and Hubie Halloween (2020); and provided voice acting roles in the animated films Monsters, Inc. (2001), The Boss Baby (2017), and Transformers One (2024).

Buscemi has also had an extensive career in television, notably starring in the lead role of Enoch "Nucky" Thompson in the HBO series Boardwalk Empire (2010–2014). His performance earned him two Screen Actors Guild Awards, a Golden Globe and two nominations for a Primetime Emmy Award. His other television roles include Lonesome Dove (1989), The Sopranos (2004, 2006), 30 Rock (2007–2013), Horace and Pete (2016), and Miracle Workers (2019–2023). Buscemi also directed the films Trees Lounge (1996), Animal Factory (2000), and Interview (2007).