2017–18 Coppa Italia

The 2017–18 Coppa Italia, also known as TIM Cup for sponsorship reasons, was the 71st edition of the national domestic tournament. As a minimum, the winners of the Coppa Italia earn a place in the 2018–19 Europa League and would begin play in the group stage unless they qualify for a more favourable UEFA placing based on league play. Seventy-eight clubs participated in this season's cup competition.

Juventus won the title for a 13th time by defeating Milan 4–0, and extended to four their record consecutive win streak. They had defeated Lazio (in 2014–15 and 2016–17) and Milan (in 2015–16). They did not concede a goal in any of the five games played in this year's competition, outscoring their opponents 10–0 on aggregate.

Serie A (20 teams)

 * Atalanta
 * Benevento
 * Bologna
 * Cagliari
 * Chievo
 * Crotone
 * Fiorentina
 * Genoa
 * Hellas Verona
 * Internazionale
 * Juventus
 * Lazio
 * Milan
 * Napoli
 * Roma
 * Sampdoria
 * Sassuolo
 * SPAL
 * Torino
 * Udinese

Serie B (22 teams)

 * Ascoli
 * Avellino
 * Bari
 * Brescia
 * Carpi
 * Cesena
 * Cittadella
 * Cremonese
 * Empoli
 * Foggia
 * Frosinone
 * Novara
 * Palermo
 * Parma
 * Perugia
 * Pescara
 * Pro Vercelli
 * Salernitana
 * Spezia
 * Ternana
 * Venezia
 * Virtus Entella

Serie C (27 teams)

 * AlbinoLeffe
 * Alessandria
 * Arezzo
 * Bassano Virtus
 * Casertana
 * Cosenza
 * FeralpiSalò
 * Giana Erminio
 * Gubbio
 * Juve Stabia
 * Lecce
 * Livorno
 * Lucchese
 * Matera
 * Padova
 * Paganese
 * Pro Piacenza
 * Piacenza
 * Pisa
 * Pordenone
 * Reggiana
 * Renate
 * Sambenedettese
 * Siracusa
 * Trapani
 * Vicenza
 * Virtus Francavilla

Serie D (9 teams)

 * Nuova Monterosi
 * Massese
 * Varese
 * Trastevere
 * Imolese
 * Rende
 * Triestina
 * Ciliverghe Mazzano
 * Matelica

Format and seeding
Teams entered the competition at various stages, as follows:
 * First phase (one-legged fixtures)
 * First round: 36 teams from Serie C and Serie D started the tournament
 * Second round: the eighteen winners from the previous round were joined by the 22 Serie B teams
 * Third round: the twenty winners from the second round met the twelve Serie A sides seeded 9–20
 * Fourth round: the sixteen winners faced each other
 * Second phase
 * Round of 16 (one-legged): the eight fourth round winners were inserted into a bracket with the Serie A clubs seeded 1–8
 * Quarter-finals (one-legged)
 * Semi-finals (two-legged)
 * Final (one-legged)

Round dates
The schedule of each round was as follows:

First round
A total of 36 teams from Serie C and Serie D competed in this round, eighteen of which advanced to second round. The first round matches were played between 29 and 30 July 2017.

Second round
A total of forty teams from Serie B, Serie C and Serie D competed in the second round, twenty of which advanced to join twelve teams from Serie A in the third round. The second round matches were played on 5 and 6 August 2017.

Third round
A total of 32 teams from Serie A, Serie B and Serie C competed in the third round, sixteen of which advanced to the fourth round. The third round matches were played from 11–13 August 2017.

Fourth round
The fourth round matches were played between 28–30 November 2017. All times were CET (UTC+1).

Round of 16
Round of 16 matches were played from 12–20 December 2017.

Quarter-finals
Quarter-final matches were played from 26 December 2017 to 3 January 2018.

Semi-finals
For the semi-finals, the first legs were played on 30 and 31 January and the second on 28 February 2018.