| Founded | 1929 |
|---|---|
| Country | Italy |
| Number of teams | 20 |
| Level on pyramid | 2 |
| Promotion to | Serie A |
| Relegation to | Serie C |
| Current champions | Sassuolo (2nd title) |
| Most championships | Genoa, Atalanta (6 titles each) |
| Website | https://www.legab.it/ |
| Current: 2025–26 Serie B | |
Serie B is the second highest division of football in Italy. It was founded in 1929.
First of creation of Serie B, there are some championship with few teams, but on 1929 was created a round-robin tournament with 18 clubs by Leandro Arpinati, fascist politician, the same year of Serie A. From 1933 to 1935, Serie B returned with two groups (of 13 and after of 16 teams), but the following year it returns with 18 clubs (apart of two editions of 16 and 17 teams). After a pause for the Second World War, Serie B returned with three groups, and from 1948 with 18, 20, 21 or 22 clubs. On 2003–04 edition, in Serie B there were 24 teams, the highest number of history. Until 2018 played 22 clubs, but then come down to 19 and to 20 teams, current number.
At the end of the seasons, three teams are promoted to Serie A. The first two teams are directly qualified.
The third team is selected by play-offs. If the third team is 10 points or more ahead of the 4th team, then the third team is automatically qualified.
The three last-placed teams are directly relegated to Serie C, and the 17th team is automatically relegated only if the 16th team is 5 points or more ahead.
If the 16th team is not 5 points or more ahead of the 18th team, there will be play-outs.
The winner of Serie B, from 2021, takes the Coppa Nexus, 7075 aluminium alloy cup with the Italian flag.

Serie B Player of the Month is the awards given to the best player for all months.
| Team | Home city | Stadium | Capacity | 2016–17 season |
|---|---|---|---|---|
| Ascoli | Ascoli Piceno | Stadio Cino e Lillo Del Duca | 10,887 | 15th in Serie B |
| Avellino | Avellino | Stadio Partenio – Adriano Lombardi | 10,215 | 17th in Serie B |
| Bari | Bari | Stadio San Nicola | 58,270 | 12th in Serie B |
| Brescia | Brescia | Stadio Mario Rigamonti | 16,743 | 14th in Serie B |
| Carpi | Carpi | Stadio Sandro Cabassi | 5,510 | 7th in Serie B |
| Cesena | Cesena | Orogel Stadium Dino Manuzzi | 23,860 | 13th in Serie B |
| Cittadella | Cittadella | Stadio Pier Cesare Tombolato | 7,623 | 6th in Serie B |
| Cremonese | Cremona | Stadio Giovanni Zini | 20,641 | Lega Pro/A Champions |
| Empoli | Empoli | Stadio Carlo Castellani | 16,800 | 18th in Serie A |
| Foggia | Foggia | Stadio Pino Zaccheria | 16,798 | Lega Pro/C Champions |
| Frosinone | Frosinone | Stadio Benito Stirpe | 16,125 | 3rd in Serie B |
| Novara | Novara | Stadio Silvio Piola | 17,875 | 9th in Serie B |
| Palermo | Palermo | Stadio Renzo Barbera | 36,349 | 19th in Serie A |
| Parma | Parma | Stadio Ennio Tardini | 27,906 | 2nd in Lega Pro/B |
| Perugia | Perugia | Stadio Renato Curi | 23,125 | 4th in Serie B |
| Pescara | Pescara | Stadio Adriatico – Giovanni Cornacchia | 20,515 | 20th in Serie A |
| Pro Vercelli | Vercelli | Stadio Silvio Piola | 5,500 | 16th in Serie B |
| Salernitana | Salerno | Stadio Arechi | 31,300 | 11th in Serie B |
| Spezia | La Spezia | Stadio Alberto Picco | 10,290 | 8th in Serie B |
| Ternana | Terni | Stadio Libero Liberati | 17,460 | 18th in Serie B |
| Venezia | Venice | Stadio Pierluigi Penzo | 7,450 | Lega Pro/B Champions |
| Virtus Entella | Chiavari | Stadio Comunale Aldo Gastaldi | 5,535 | 10th in Serie B |
| Club | Winners | Runners-up | Winning Years |
|---|---|---|---|
| Genoa | 6 | 1 | 1935, 1953, 1962, 1973, 1976, 1989 |
| Atalanta | 6 | 3 | 1928, 1940, 1959, 1984, 2006, 2011 |
| Palermo | 5 | 2 | 1932, 1948, 1968, 2004, 2014 |
| Bari | 4 | 6 | 1935, 1942, 1946, 2009 |
| Brescia | 4 | 6 | 1965, 1992, 1997, 2019 |
| Verona | 3 | 5 | 1957, 1982, 1999 |
| Como | 3 | 2 | 1949, 1980, 2002 |
| Torino | 3 | 2 | 1960, 1990, 2001 |
| Varese | 3 | 1 | 1964, 1970, 1974 |
| Vicenza | 3 | 1 | 1955, 1977, 2000 |
| Fiorentina | 3 | – | 1931, 1939, 1994 |
| Novara | 3 | 3 | 1927, 1938, 1948 |
| Venezia | 2 | 3 | 1961, 1966 |
| Napoli | 2 | 3 | 1946, 1950 |
| Pescara | 2 | 2 | 1987, 2012 |
| Udinese | 2 | 2 | 1956, 1979 |
| Ascoli | 2 | 1 | 1978, 1986 |
| Livorno | 2 | 1 | 1933, 1937 |
| Bologna | 2 | 1 | 1988, 1996 |
| Lucchese | 2 | – | 1936, 1947 |
| Milan | 2 | – | 1981, 1983 |
| Salernitana | 2 | – | 1947, 1998 |
| SPAL | 2 | – | 1951, 2017 |
| Modena | 1 | 4 | 1943 |
| Pisa | 1 | 4 | 1985 |
| Cagliari | 1 | 3 | 2016 |
| Padova | 1 | 3 | 1948 |
| Lazio | 1 | 2 | 1969 |
| Lecce | 1 | 2 | 2010 |
| Perugia | 1 | 2 | 1975 |
| Pro Patria | 1 | 2 | 1947 |
| Alessandria | 1 | 1 | 1946 |
| Catania | 1 | 1 | 1954 |
| Empoli | 1 | 1 | 2005 |
| Foggia | 1 | 1 | 1991 |
| Mantova | 1 | 1 | 1971 |
| Piacenza | 1 | 1 | 1995 |
| Reggiana | 1 | 1 | 1993 |
| Sampdoria | 1 | 1 | 1967 |
| Siena | 1 | 1 | 2003 |
| Ternana | 1 | 1 | 1972 |
| Carpi | 1 | – | 2015 |
| Casale | 1 | – | 1930 |
| Chievo | 1 | – | 2008 |
| Juventus | 1 | – | 2007 |
| Messina | 1 | – | 1963 |
| Roma | 1 | – | 1952 |
| Sassuolo | 1 | – | 2013 |
| Triestina | 1 | – | 1958 |
| Spezia | 1 | – | 1929 |
| Legnano | – | 4 | – |
| Catanzaro | – | 2 | – |
| Cesena | – | 2 | – |
| Lecco | – | 2 | – |
| Cremonese | – | 1 | – |
| Crotone | – | 1 | – |
| Frosinone | – | 1 | – |
| Parma | – | 1 | – |
| Pistoiese | – | 1 | – |
| Treviso | – | 1 | – |