The 2006β07 Serie C1 was the twenty-ninth edition of
Serie C1, the third highest league in the
Italian football league system. It was divided into two phases: the
regular season, played from 3 September 2006, to 13 May 2007, and the playoff phase. Once the regular season was over teams placed 2nd to 5th entered a playoff to determine the second team in each division to be promoted to Serie B. At the same time, teams placed 14th to 17th entered a playout for the right to remain in Serie C1 the following season.
As usual, Serie C1 was composed by two divisions, whose teams were divided geographically. Division C1/A was mainly composed by
Northern Italy teams, whereas Division C1/B included mostly
Central and
Southern Italy teams. No teams from the major islands of
Sardinia or
Sicily took part in the 2006β07 Serie C1, as the only two eligible to participate in it,
Gela and
Sassari Torres, were both omitted due to financial troubles.
Teams finishing first in the regular season, plus one team winning the playoff round from each division were promoted to
Serie B; teams finishing last in the regular season, plus two relegation playoff losers from each division were relegated to
Serie C2. In all, four teams were promoted to Serie B, and six teams were relegated to Serie C2.