Iglesia parroquial de San Gil Abad, Catholic parish church in Zaragoza, Spain.

Iglesia parroquial de San Gil Abad is a parish church built in Mudéjar style, distinguished by a brick tower with a square base transitioning to rectangular levels with openings for bells. The interior features barrel vaults with lunettes and ornate plasterwork added during the 18th century.

After the Christian conquest of Zaragoza in 1118, a Romanesque temple was built on a Roman road and subsequently replaced by this Mudéjar church. The structure underwent complete reorientation in the 18th century as part of a Baroque renovation.

The church is dedicated to Saint Gil Abad and displays ceiling frescoes by Ramon Bayeu alongside seven canvas paintings by Fray Manuel Bayeu in the sacristy. These artworks shape the visual character of the interior today.

The church stands at Calle de Jaime I no. 15, in the old centre of Zaragoza. The main entrance, built in 1640, faces the side that became the front after the 1719–1725 renovation, so the polygonal apse now sits at the rear. Look up at the brick tower, documented in 1358, where the lower square plan gives way to rectangular upper levels holding the bell openings.

The brick tower, documented as early as 1358, mixes a square plan on its lower levels with a rectangular plan above, and the bell openings sit in the top two sections. It is one of Zaragoza's Mudéjar towers that is not on the UNESCO World Heritage list, though the church was declared a Bien de Interés Cultural in 1967.