2024–25 Serie D

The 2024–25 Serie D is the seventy-fifth season of the top-level Italian non-professional football championship. It represents the fourth tier in the Italian football league system.

Rules
The season will provide a total of nine promotions to Serie C (those being the winners of all nine groups). Teams placed between second and fifth for each group will play a so-called "playoff tournament," starting with two one-legged games played at the best-placed team's home venue:


 * 2nd-placed team vs 5th-placed team;
 * 3rd-placed team vs 4th-placed team.

In case of a draw by the end of the game, two extra times will be played; in case of no winner after that, the best-placed team will advance to the final.

The two winning teams will then play a one-legged final, to be hosted at the best-placed team's home venue, with the same rules as in the first round. The nine playoff winners for each group will be prioritized to fill any potential Serie C league vacancies.

The two bottom-placed teams for each league group are automatically relegated to Eccellenza. Two two-legged relegation playoff games (known in Italian as "play-out") will therefore be played between:


 * 13th-placed team vs 16th-placed team (for 18-team groups), or 15th-placed team vs 18th-placed team (for 20-team groups);
 * 14th-placed team vs 15th-placed team (for 18-team groups), or 16th-placed team vs 17th-placed team (for 20-team groups).

Two extra times will be played in case of an aggregate draw after the second leg; in case of a further aggregate draw, the worst-placed team will be relegated.

In case the two teams have a league gap of at least eight points, the relegation playoff will not take place and the worst-placed team will be automatically relegated instead.

Teams
The league's composition involves nine divisions, grouped geographically and named alphabetically.

Teams relegated from Serie C
The following teams were relegated from the 2023–24 Serie C:
 * From Group A: Fiorenzuola, Pro Sesto;
 * From Group B: Recanatese, Fermana, Olbia;
 * From Group C: Virtus Francavilla, Monterosi, Brindisi.

Alessandria, who were originally relegated from Serie C, failed to send a valid application in time and were consequently excluded from the league.

Teams promoted from Eccellenza
The following teams were promoted from Eccellenza:


 * Abruzzo
 * Teramo
 * Apulia
 * Ugento
 * Basilicata
 * Francavilla
 * Calabria
 * Sambiase
 * Campania
 * Real Acerrana
 * Sarnese
 * Costa d'Amalfi
 * Pompei
 * Emilia Romagna
 * Cittadella Vis Modena
 * Sasso Marconi
 * Friuli-Venezia Giulia
 * Brian Lignano
 * Lazio
 * Amatrice Rieti
 * Terracina


 * Liguria
 * Imperia
 * Cairese
 * Lombardy
 * Oltrepò
 * Nuova Sondrio
 * Ospitaletto
 * Magenta
 * Marche
 * Civitanovese
 * Castelfidardo
 * Molise
 * Isernia
 * Piedmont & Aosta Valley
 * Borgaro Nobis
 * Saluzzo
 * Fossano
 * Sardinia
 * Ilvamaddalena


 * Sicily
 * Nissa
 * Enna
 * Paternò
 * Trentino Alto Adige – Südtirol
 * Lavis
 * Tuscany
 * Tuttocuoio
 * Siena
 * Terranuova Traiana
 * Umbria
 * Fulgens Foligno
 * Veneto
 * Vigasio
 * Calvi Noale
 * Bassano

Originally promoted, successively excluded. Promoted as national playoff winners. Promoted as Coppa Italia Dilettanti winners.

Readmissions
On 15 July 2024, the league committee announced that it had admitted SSC Ancona ASD to the league after the original club's exclusion from Serie C, according to the Article 52 of NOIF regulations.

Relocations, mergers and renamings

 * Clivense was renamed to ChievoVerona.
 * LFA Reggio Calabria was renamed to Reggina.
 * Canicattì merged with Pro Favara, relocated to Favara and changed its denomination to CastrumFavara.
 * Aglianese handed its participation league rights to Pistoiese.
 * Portici handed its participation league rights to Savoia.

Exclusions and withdrawals
On 16 July 2024, the Serie D football committee announced Alessandria, Amatrice Rieti, Monte Prodeco and Rotonda failed to submit a valid league application in time.