San Mattia is a Roman Catholic parish church in Rome dedicated to saint Matthias.
Designed by Ignazio Breccia, it is located on via Corrado Alvaro in the Monte Sacro Alto quarter.
[1] It has a marble altar, an olive-shaped sanctuary, a square overall plan and a 'sampietrini' floor made of cubes of porphyry.
Its parish was established by decree of cardinal vicar Clemente Micara "Paulus Div.
It was opened on 22 November 1969 by monsignor Ugo Poletti, who also consecrated it on 16 December 1978.