San Giovannino, Baroque church in central Alessandria, Italy

San Giovannino is a baroque church located in central Alessandria. The building displays a triangular pediment on its facade, decorated with statues representing theological virtues and religious figures.

A fire on 14 October 1706, caused by the explosion of a warehouse, severely damaged the earlier church. With permission from Bishop Francesco Arborio Gattinara, the confraternity demolished it in 1709 and laid the first stone on 29 August, the feast of the Decollation of Saint John. The church was completed in 1731; in 1767 Giuseppe Domenico Trolli added the choir, sacristy, bell tower and apse, and it was blessed on 13 March 1769.

The church belongs to the Veneranda Confraternita del Santissimo Crocifisso, which Stefanino Pupino made his heir in a will of 20 December 1484, asking the brothers to build an oratory near the church of San Giovanni decollato. To distinguish it from other churches of the same saint, it was called sancte Joannes parvus, or San Giovannino, by 1524. After joining the Roman Archconfraternity of the Most Holy Crucifix, its title gradually changed, and in 1632 it was recorded as "santissimo Crocifisso in san Giovanni decollato".

The church stands on Corso Roma, the main street of Alessandria, opposite the houses that belonged to the Trotti family until the mid-19th century. The facade faces the street, so the entrance is reached directly from the pavement. The floor was redone in the 1950s, which removed the two burial vaults opened in 1756.

In a smaller room of the church hangs a 1718 painting of the beheading of John the Baptist by the confrere Giuseppe Daneo; facing it is a large canvas of Saint Bovo, commissioned in 1717 by cattle breeders and traders who honoured their patron with a novena each May.