The reptile fauna of some localities in Paraná is still poorly known. Most surveys were conducted in the central-north, central-south, and eastern regions of the state. Herein, we present a list of squamate reptiles from the Mauá Hydroelectric Power Plant along the Tibagi River, in the central-east region of Paraná. Samplings occurred from March 2010 to April 2015. We recorded 34 species: 24 snakes, eight lizards, and two amphisbaenians. Our work adds new knowledge about the reptilian fauna of the central-east region of Paraná.