Sant'Alessandro, Roman Catholic church in central Parma, Italy.

Sant'Alessandro is a single-nave church on via Garibaldi in central Parma, its Neoclassical facade of 1784 by Antonio Bettoli facing the church of the Steccata. The Baroque interior, reworked by Giovanni Battista Magnani in 1622-1624, has three side chapels per side, a nave vault frescoed by Angelo Michele Colonna and a cupola painted by Alessandro Tiarini. The bell tower, also by Magnani, dates from 1626.

Founded in 835 by Queen Cunegonda, widow of King Bernard of Italy, with an adjacent Benedictine monastery, the church received the relics of Pope Alexander I from Pope Gregory IV in 837. It was rebuilt around 1527 under Bernardino Zaccagni and reconsecrated in 1530, then remodelled in 1622–1624 by Giovanni Battista Magnani, whose campanile dates from 1626. The monastic community was dissolved under Napoleon in 1810, and most of the monastery was demolished for the Teatro Regio, opened in 1829.

The church is dedicated to Saint Alexander and displays religious imagery throughout its interior that reflects centuries of devotion and artistic skill. The altarpiece and ceiling decorations tell stories of holy figures in compositions that visitors encounter directly when entering the space.

The main entrance is at 1 Vicolo Sant'Alessandro, opening onto Strada Giuseppe Garibaldi, with the neoclassical facade of 1784 facing the church of the Steccata across the street. The interior is a single nave with three side chapels per side, so the paintings and the 1856 Sangalli organ on the choir loft left of the presbytery are seen on foot at close range.

The church interior displays illusionistic ceiling paintings that captivate viewers with their spatial depth and project heavenly scenes into the room itself. This ceiling painting technique creates a visual expansion of the physical space, making the visit a surprising aesthetic experience.