Col San Giovanni is a frazione (and a parish) of the municipality of Viù, in Piedmont, northern Italy.

In former times the village was named Collis ad sancti Joannis or Collo di San Giovanni.

[3] Col San Giovanni was first mentioned in a document signed in 1011 by Landolfo, archbishop of Turin.

[4] The local church was built from 1614 on the site of a previous one and it was renovated in 1922 to allow the transit of a new road.

Its bell tower is the oldest of the Lanzo Valleys and was built at the end of the 11th century.