The Saint Sebastian Church or Iglesia de San Sebastián is a 16th-century church in central Madrid, Spain. It is located on Atocha street, #39. The name arises from a devotional chapel (ermita) which was found along the route to the Basilica of Nuestra Señora de Atocha, founded in 1541. The first architect around 1550 was , who also finished the Chapel of the Sagrado Corazón. This church like that of San Luis conserved for years the rights of asylum for those escaping official persecution. More chapels and enlargements were added by , , and between 1595 and 1598. The tower was built in 1612 by Lucas Hernández. During the Spanish Civil War, the church was sacked by Republican forces, before it ended up being almost destroyed during a bombing raid by the Nationalists around November 20, 1936