San Salvatore in Onda is a Roman Catholic church, located on via dei Pettinari #56-58, in rione Regola of Rome, Italy.

The Via dei Pettinari retraces the route of an ancient path which starts from the Pons Aurelius and headed towards the Theatre of Pompey.

Between the windows, in each of the eight quadrants divided by pilasters on the dark red wall, Prósperi also frescoed, on gold, saints and patriarchs of the Old Testament that foreshadowed the Savior.

The church underwent reconstruction in 1867, including elevation, directed by Luca Carimini, who used a basilica design.

In the center of the apse is a fresco depicting Virgin and Child (1878) by Cesare Mariani, which replaced the picture of the Queen of the Apostles by Serafino Cesaretti.

Under the main altar is a sarcophagus made by Arnoldo Brandizzi which, since 1950, contains the body of St Vincent Pallotti.

On the altar is the picture of the “Virgo Potens” donated by the Venerable Elisabetta Sanna, who died in 1857 and was buried in this chapel.