The Serie D (Italian pronunciation: [ˈsɛːrje ˈdi]) is the highest level of semi-professional football in Italy.

In 1948 the three leagues running Division 3 (Serie C) had to be reorganized due to an ever-growing number of regional teams.

With the merger of the Lega Pro's two divisions at the end of the 2013–14 season (as decided by the FIGC and Lega Pro in November 2012) to reestablish Serie C,[1] Serie D and the leagues below it moved up by one level in the pyramid system, reducing the number of leagues in Italian football to nine.

In recent years, one or more teams from the professional leagues have normally failed to meet the regulatory or financial requirements in order to participate.

Four of those spaces were filled by calling back teams that had played in Seconda Divisione but were relegated to Serie D for the next season.

Since the 2007–08 season, if games are still tied after extra time, the higher classified team is declared the winner.

The semi-finals are a two-legged tie, with the winners qualifying for a one-game final match played at a neutral site.

[2] Serie D does not use head-to-head results to order teams that are tied in points in certain situations, single-game tie-breakers are held at neutral sites instead.

Each year, at the end of the regular season, the winners of the nine Serie D divisions qualify for a championship tournament in order to assign the so-called Scudetto Dilettanti (amateur champions' title).