Bormio (Lombard: Bormi, Romansh: Buorm) is a town and comune with a population of about 4,100 located in the Province of Sondrio, Lombardy region of the Alps in northern Italy.The centre of the upper Valtellina valley, it is a popular winter sports resort. It was the site of the Alpine World Ski Championships in 1985 and 2005, and annually hosts the Alpine Ski World Cup.