São Paio

São Paio may refer to the following places in Portugal:


 * São Paio (Arcos de Valdevez), a parish in the municipality of Arcos de Valdevez
 * São Paio (Gouveia), a parish in the municipality of Gouveia
 * São Paio (Guimarães), a parish in the municipality of Guimarães
 * São Paio (Melgaço), a parish in the municipality of Melgaço
 * São Paio de Oleiros, a parish in the municipality of Santa Maria da Feira