Iglesia de San Juan Bautista (Church of St. John the Baptist) is a Neoclassical church in Chiclana de la Frontera, in the Province of Cádiz, Andalusia, southern Spain. Construction on an earlier began around 1510, in a slow building process, and was still not completed by 1576. The original church was demolished in the eighteenth century because it was impossible to undertake its expansion, due to its state of ruin. A bas-relief of the altarpiece dated to 1552 by the sculptor Roque Balduque and the painter Andrés Ramírez were salvaged though.