Yussef Dayes, is an English drummer and composer who is prominent in the South London contemporary jazz scene.

He is known for his work with keyboardist Kamaal Williams, releasing the 2016 album Black Focus as the duo Yussef Kamaal, and with English singer and guitarist Tom Misch, releasing the 2020 collaborative album What Kinda Music. Dayes released his debut solo album Black Classical Music on 8 September 2023.

Dayes' initially took influence from his father's jazz and reggae records, his mother's love for country music and the Beatles, and from Ahmad producing jungle music. He additionally found inspiration growing up listening to grime and hip-hop, "That same energy and those different flows, I put into my drums."