The 1930–31 Serie B was the second tournament of this competition played in Italy since its creation.

Teams

Derthona Associazione Sportiva Dilettantistica HSL Derthona, also known as Derthona, is a football club based in Tortona, Piedmont, Italy. Derthona currently plays in Serie D The Serie D () is the top level of semi-professional football in the coun ...

, Lucchese, Udinese and

Palermo Palermo ( , ; scn, Palermu , locally also or ) is a city in southern Italy, the capital (political), capital of both the autonomous area, autonomous region of Sicily and the Metropolitan City of Palermo, the city's surrounding metropolitan ...

had been promoted from

Prima Divisione Prima Divisione (''First Division'') was the name of the first level of the Italian Football Championship from 1921 to 1926. The competition was initially founded in opposition to the FIGC by the richest clubs of Northern Italy, which disagreed the ...

, while

Cremonese Cremona (, also ; ; lmo, label= Cremunés, Cremùna; egl, Carmona) is a city and ''comune'' in northern Italy, situated in Lombardy, on the left bank of the Po river in the middle of the ''Pianura Padana'' (Po Valley). It is the capital of the ...

and Padova had been relegated from Serie A.

Events

Following a reform of the third division, the relegations were reduced from four to three.

Final classification

Results

Relegation tie-breaker

:''Played in Bologna, 12 July 1931'' Lucchese were relegated to

. {{DEFAULTSORT:1930-31 Serie B 1930-1931 2 Italy