Iglesia San Sebastián Mártir

The Iglesia San Sebastián Mártir (Church of Saint Sebastian the Martyr) in the plaza in San Sebastián, Puerto Rico was completed in 1897 and listed on the U.S. National Register of Historic Places in 1984.

It is one of five churches designed by state architect Pedro Cobreros during 1890 to 1896 and completed in 1897 and is "austere, yet noble".

It is one of 31 churches reviewed for listing on the National Register in 1984.