Iglesia de San Ignacio, Catholic church in Santiago, Chile

The Iglesia de San Ignacio is a Renaissance Revival Catholic church beside the Colegio San Ignacio in Santiago, built in clay brick masonry with three naves. Its two square-plan towers, 47 metres high and 20 tons each, are topped with cupolas; the left tower carries a four-faced clock made in Bilbao and installed in 1901. The portico entablature reads Ad maiorem Dei gloriam, and over the entrance is the motto Haec est domus Dei et porta coeli.

Construction started in 1867 after fire destroyed the previous church on the site. Italian architect Eusebio Chelli directed the project until 1872, establishing the building's main character.

The church keeps the name of Saint Ignatius of Loyola, founder of the Society of Jesus. Since 1914 the walls carry a Stations of the Cross painted in oil in Rome and donated by Felipa Ossa Ceroz. Near the confessional used by Saint Alberto Hurtado hangs a painting of him by Claudio Di Girólamo.

The church stands beside the Colegio San Ignacio, a block south of the Alameda, and is reached from the Alonso Ovalle and San Ignacio street frontage. The 2010 earthquake cracked the structure and destroyed the ornaments at the wall ends; restoration ran until July 2011. Visitors enter through the main door under the Latin inscription Haec est domus Dei et porta coeli.

The west tower's three bells include two cast from a bell that hung in the Jesuit church destroyed by fire on 8 December 1863. President Federico Errázuriz Zañartu and minister Aníbal Pinto helped return that bell to the Jesuits, who melted it down.