Intesa Sanpaolo S.p.A. is an Italian international banking group. It is Italy's largest bank by total assets and the world's 27th largest. It was formed through the merger of Banca Intesa and Sanpaolo IMI in 2007, but has a corporate identity stretching back to its first foundation as Istituto Bancario San Paolo di Torino in 1583.

Banca Intesa S.p.A. was an Italian banking group, formed in 1998 by merger of Cassa di Risparmio delle Provincie Lombarde (Cariplo) and Banco Ambrosiano Veneto. The next year, the banking group merged with Banca Commerciale Italiana to become IntesaBCi, but the name of the group was reverted to Banca Intesa in 2003.