The Church and College of São Lourenço, popularly known as the Igreja dos Grilos, is a set of religious buildings in the city of Porto, in Portugal.

Built by the Jesuits in 1577 in a Baroque-Jesuit mannerist style, financed by donations from the faithful, as well as by Friar Luís Álvaro de Távora, Commander of Leça do Balio, of the Order of Malta, whose coat of arms tops the main facade, the Church and the São Lourenço Convent were erected with strong opposition from the city council and the population. However, the followers of Santo Inácio de Loyola ended up managing to found the highly sought after school with free classes, which quickly achieved a notable success. The population's opposition was not directed at the Jesuits, but at the college they intended to institute due to the privileges that citizens had that prevented the nobles and nobles from staying within the city for a period exceeding three days. Thus, the school that was to be built would call children noble and noblemen who would necessarily have to reside in the city, but through some artifices of the religious the opposition of the bourgeois was overcome.