John Dyer is a photographer. He has a Master of Arts degree from the University of Texas where he worked with Russell Lee and Garry Winogrand.

He is the author of Conjunto (University of Texas Press, October, 2005), El Vaquero Real, The Original American Cowboy (Bright Sky Press, September, 2007) and San Antonio Hidden Treasures (Private Commission, 2011), Edge of Texas was shot in 2019 and is yet to be published.

John has exhibited his photographs at a wide variety of museums and galleries and is represented by Heidi Vaughan Fine Art in Houston, Texas.  John’s portrait of Selena was exhibited in Icons of Style, in 2020, at the Fine Arts Museum Houston and is part of their permanent collection. In 2019, the National Portrait Gallery acquired one of his Selena portraits for their permanent collection. In 2024, the El Paso Museum of Art acquired a portrait of Selena for their permanent collection. And, in 2024, the Witliff Collection at Texas State University acquired 14 of John's Texas musician portraits for it's permanent collection.

John’s exhibition, Selena Forever/Siempre Selena, originated at the McNay Museum of Art in San Antonio, and has since travelled to Crystal Bridges Museum of American Art and is currently at the El Paso Museum of Art.

John lives with his wife, the painter Diane Mazur, in San Antonio, Texas.