Chauncey Alexander Hollis Jr., known professionally as Hit-Boy, is an American record producer, rapper, and record executive. A three-time Grammy Award winner and eleven-time nominee, he is the founder of Surf Club Inc., an independent label, publishing company, and entertainment company. 

He has produced or co-produced charting singles for Jay-Z and Kanye West ("Niggas in Paris"), Travis Scott ("Sicko Mode"), Nipsey Hussle ("Racks in the Middle"), Beyoncé ("Sorry"), Drake ("Trophies"), and Lil Wayne ("Drop the World"), and helmed the entirety of production on six Nas albums—King's Disease (2020), King's Disease II (2021), Magic, King's Disease III (2022), Magic 2, and Magic 3 (2023). His collaborative album with The Alchemist, Goldfish, was released in October 2025 via Surf Club Inc.

He first signed with fellow producer Polow da Don in 2007 as in-house production staff for his label Zone 4, and later joined Kanye West's GOOD Music in 2011 to serve a similar role. His first major production credit, Lil Wayne's 2009 single "Drop the World", peaked at number 18 on the Billboard Hot 100. The following year, he produced West and Jay-Z's 2011 single "Niggas in Paris", which peaked at number five on the chart and received diamond certification by the Recording Industry Association of America (RIAA). His record label imprint, Hits Since '87, was founded in 2011 as an imprint of Interscope.