The name Collepasso, in the form Koulopatze, is reported in a Greek parchment of the 12th century, as a possible hellenic transliteration of the contemporary forms from the Latin archive vulgarized and become Colopati and Colopaci, present in several public documents of the time.

The farmhouse of Colopati (Colopaci) certificated in the course of 1200 and 1300, disappeared in the late XIVth and early XVth century so that its territory remained depopulated, without a human nucleus firmly in place, until the end of 1700. The feud, however, continued to be owned by several feudal dynasties, the latest of which were the families of Massa and, starting from 1692, that of the Leuzzi.

At the end of 1500 on the territory of Collepasso has been documented the presence of a number of farms in which families or seasonal workers used to live and work, which obviously did not constitute an organized community.

In the early 1800s, in the territory, the new village of Collepasso was rebuild at the behest of the last Baroness Maria Aurora Leuzzi and Count Bartolomeo Contarini degli Alberti of Enno. They attracted on the grounds of the manor peasants from neighboring towns, with long-term leasing of plots of land on favorable terms and other cash incentives to till the land and starting crops. In addition, giving these small lots around the baronial palace with the explicit intention of encouraging housing construction that, in long-term rent, it was posed a binding condition for obtaining the land by the peasants.

The new village of Collepasso was thus founded as part of the municipality of Cutrofiano. On 18 February 1912 the first council of the new municipality of Collepasso was elected.