Sean John Combs (born November 4, 1969), known professionally as Diddy (formerly Puff Daddy and P. Diddy), is an American rapper, record producer, and record executive. Born in Harlem, Combs worked as a talent director at Uptown Records before founding his own record label, Bad Boy Records, in 1993. He is credited with the discovery and development of musical artists such as The Notorious B.I.G., Mary J. Blige, and Usher, among others.

Combs's debut studio album, No Way Out (1997), peaked atop the Billboard 200 and sold over 7 million copies in the US. Two of its singles, "Can't Nobody Hold Me Down" and "I'll Be Missing You", topped the Billboard Hot 100—the latter was the first hip-hop song to debut atop the chart. With his guest appearance on "Mo Money Mo Problems", Combs became the first solo artist to replace himself atop the chart. His second and third albums, Forever (1999) and The Saga Continues... (2001), both peaked at number two in the US. Collaborative singles "Bump, Bump, Bump" (2002) and "Shake Ya Tailfeather" (2003) made him the first rapper with five US number-one singles. Following the release of his US chart-topping fourth album Press Play (2006), Combs formed the musical trio Diddy – Dirty Money with R&B singers Kalenna Harper and Dawn Richard to release the collaborative album Last Train to Paris (2010). He independently released his fifth album, The Love Album: Off the Grid, in 2023.

One of the world's wealthiest musical artists, Combs topped Forbes annual hip-hop rich list in 2014 and 2017. His accolades include three Grammy Awards, three BET Awards and two MTV Video Music Awards. He has worked as a producer for other media, including the reality television series Making the Band, and he starred in the films Made, Monster's Ball (both 2001) and Get Him to the Greek (2010). Combs launched the clothing retailer Sean John in 1998, for which he won Menswear Designer of the Year from the Council of Fashion Designers of America in 2004, having previously been nominated in 2000. He served as brand ambassador for the liquor brand Cîroc from 2007 to 2023, and co-founded the digital television network Revolt in 2013. In 2008, Combs became the first male rapper to get a star on the Hollywood Walk of Fame.

In late 2023, Combs settled a high-profile sexual assault and abuse lawsuit filed by his former partner Cassie Ventura. Numerous lawsuits regarding sexual misconduct were filed in the following months, with several claimants alleging sexual assault and abuse by Combs between 1991 and 2009. In March 2024, several of Combs' properties were raided by the Department of Homeland Security and that September, he was charged with federal sex trafficking, transportation to engage in prostitution, and racketeering. He pled not guilty and was denied bail three times. His trial began on May 5, 2025, and on July 2, he was found guilty of transportation to engage in prostitution and not guilty on racketeering and sex trafficking charges. As of July 2025, he is detained at the Metropolitan Detention Center, Brooklyn.