Hemiphractus johnsoni, or the Johnson's horned treefrog, is a species of frog in the family Hemiphractidae. It is endemic to Colombia and known from the Cordillera Central in Antioquia and Caldas Departments as well as from the Cordillera Oriental in Huila Department. Prior to 2001, what now is known as Hemiphractus helioi was included in this species.