38°07′N 13°22′E / 38.12°N 13.36°E / 38.12; 13.36Sant'Eulalia dei Catalani is a deconsecrated church, whose Renaissance facade can still be seen on Via Argenteria #19, at the edge of the lively Vucciria market in ancient quarter of Castellammare in central Palermo, region of Sicily, Italy.
In a niche in the small piazza in front of the church is a statue of the Genius of Palermo, sculpted by Pietro di Bonitate in 1483, and now called Palermu lu Grandi.
The church has a sober rectangular exterior, recalling an Ancient Roman triumphal arch, and with some similarities to the facade of Santa Maria della Catena by the harbor.
The high altar was made of polychrome marbles, surmounted by a panel depicting the Creation, with stars, the sun and the moon on a blue background.
In the past it had an altarpiece depicting the Holy Trinity by Gaspare Serenario, originally deriving from the church of San Giovanni dei Tartari.