Knock2 is the stage name of Richard Singphiphat Nakhonethap, a San Diego-based American DJ and producer. He has been active since 2018 and is associated with electronic music styles that combine bass house, trap, dubstep, and other club-oriented sounds. His releases include the solo EPs 2HEARTs and ROOM202, as well as the 2025 debut album nolimit. He is also known for his work as one half of ISOKNOCK, the electronic duo with ISOxo. In live settings, Knock2 is known for festival and club performances built around high-energy DJ sets.