San Giovanni dei Fieri is an ancient church in Pisa, Italy, located on Via Pietro Gori on the left bank of the Arno.

In 1614, the church was renovated by the architect Cosimo Pugliani.

The church belonged to the Order of St John of Jerusalem, which also owned the church of Santo Sepolcro.

The white marble façade recalls the churches of San Matteo and San Francesco in the same city.

This article about a church building or other Christian place of worship in Italy is a stub.