Joseph Antonio Cartagena (born August 19, 1970), better known by his stage name Fat Joe, is an American rapper. He began recording as a member of hip hop group Diggin' in the Crates Crew (D.I.T.C.) in 1992, and pursued a solo career with the release of his debut studio album, Represent (1993) the following year. Cartegena formed the hip hop group Terror Squad and its namesake record label in the late 1990s, through which he has signed fellow New York artists including Big Pun, Remy Ma, Tony Sunshine, and Cuban Link, as well as then-unknown producers DJ Khaled and Cool & Dre.

Represent was preceded by his debut single "Flow Joe", which entered the Billboard Hot 100 and peaked atop the Hot Rap Songs chart. The album was followed by Jealous One's Envy (1995), Don Cartagena (1998), and Jealous Ones Still Envy (J.O.S.E.) (2001)—the latter received platinum certification from the Recording Industry Association of America (RIAA) and yielded the hit single, "What's Luv?" (featuring Ja Rule and Ashanti). The song peaked at number two on the Billboard Hot 100, while his 2004 single "Lean Back" (with Terror Squad) peaked atop the chart and remains his most commercially successful release. Cartagena has also released the top 40 singles "Make It Rain" (featuring Lil Wayne) in 2006, and "All the Way Up" (with Remy Ma featuring French Montana and Infared) a decade later.

Cartagena has appeared in several films, including Scary Movie 3 and Happy Feet, as well as Spike Lee's Netflix series She's Gotta Have It. In 2018, he created and hosted the Coca Vision podcast on Tidal, where he discusses music, friendships, and pop culture with various celebrity guests.