John Charles Wiltshire-Butler (born 1 April 1975) or John Charles Butler is an American-born Australian APRA and Aria-award winning singer, multi-instrumentalist musician, songwriter, record label owner and producer. He is the front man for the John Butler Trio, a roots and jam band, which formed in Fremantle, Perth, Western Australia in 1998.

The John Butler Trio has recorded five studio albums including three which have reached number one on the Australian charts: Sunrise Over Sea, Grand National and April Uprising. His recordings and live performances have met with critical praise and have garnered awards from the Australian Performing Right Association and Australian Recording Industry Association.