The 1930–31 Serie A season was won by Juventus.

Unione Sportiva Livorno 1915, is a semi-professional Italian football club based in Livorno, Tuscany. They compete in Serie D, the top tier of semi-professional Italian football after their promotion from the regional Eccellenza Tuscany league. The team's colours are dark red. Livorno were one of the original sides of Serie A, the top flight of Italian football, but have been relegated seven times from the top flight and have undergone two club refoundings in 1991 and 2021, necessitating a rise from the regional Eccellenza leagues. Their longest spells in the top division were from 1940 to 1949 and from 2004 to 2008. The amaranto have won Serie B on two occasions, the Lega Pro Prima Divisione and Lega Pro Seconda Divisione once each, and the Supercoppa di Serie C once as well. Livorno play their home matches at the Stadio Armando Picchi.