Kim Sang-woo (Korean: 김상우; born July 3, 1993), known professionally as Roy Kim (Korean: 로이킴), is a South Korean singer-songwriter and radio presenter. He began his singing career after winning the television talent show Superstar K 4 in 2012.

Kim officially debuted with the studio album, Love Love Love (2013), which included the hit single "Bom Bom Bom." The album garnered Kim awards for best new artist at the 15th Mnet Asian Music Awards and the 2014 Golden Disc Awards. Kim followed up his first album with the studio albums, Home (2014) and The Great Dipper (2015), and the extended play, Blooming Season (2017). He has also contributed to soundtracks for television series including Reply 1994, Pinocchio, Another Miss Oh, and Guardian: The Lonely and Great God. As of September 2024, Kim has sold over 12 million digital downloads in his native country (see Roy Kim discography).