Tronzano Vercellese (Tronsan in Piedmontese) is a comune (municipality) in the Province of Vercelli in the Italian region Piedmont, located about northeast of Turin and about west of Vercelli.
Tronzano Vercellese borders the following municipalities: Alice Castello, Bianzè, Borgo d'Ale, Crova, Ronsecco, San Germano Vercellese, and SanthiÃÂ.
Tronzano Vercellese is twinned with: