Saint Nicolas' Church, Toulouse, Gothic church in Saint-Cyprien district, Toulouse, France

Saint-Nicolas Church stands at 36 Grande-Rue Saint-Nicolas in Toulouse's Saint-Cyprien district. Its nave, attributed to Jean Constantin and dated to the mid-15th century, has five bays. The octagonal Tolosan bell tower, rebuilt around 1300, rises above a brick portal whose tympanum carries an Adoration of the Magi relief attributed to Pierre Viguier's workshop.

The church stands on foundations from the 12th century and was rebuilt in 1300 in the Meridional Gothic style, with its octagonal bell tower modelled on those of Saint-Sernin and the Jacobins. The nave, divided into five bays, is attributed to Jean Constantin and dates from the mid-15th century. The building has been classified as a monument historique since 24 July 1986.

The church gave its name to the surrounding Saint-Cyprien district. Its patron, Saint Nicholas, was invoked by those "who travel by water and fear shipwreck", fitting for a riverside quarter hit by Garonne floods, notably in 1875. Inside, six frescoes by Bernard Bénézet painted 1891–1894 show scenes from the saint's life.

The church sits within walking distance of Capitole de Toulouse and the Basilica of Saint Sernin, making it easy to visit alongside other sites. It is reached from Grande Rue Saint Nicolas in the Saint-Cyprien neighborhood, allowing visitors to explore multiple landmarks in one walk.

The bell tower displays design features also visible in the nearby Basilica of Saint Sernin and the Church of the Jacobins. This repetition of forms shows how local builders developed a recognizable style that became characteristic of Toulouse.