2018–19 LBA season

RecordsBiggest home winTrieste 110–64 Avellino
(December 16, 2018)Biggest away winAvellino 49–79 Venezia
(November 25, 2018)Highest scoringPesaro 106–122 Cremona
(December 16, 2018)Winning streak15 games
Banco di Sardegna SassariLosing streak8 games
Red October CantùHighest attendance12,005
AX Milano 72–67 Varese
(December 23, 2018)Average attendance960,823 (4,003 per match)All statistics correct as of complete. Sponsored league name, referring to PosteMobile.

The 2018–19 LBA season, also known as Serie A PosteMobile for sponsorship reasons, was the 97th season of the Lega Basket Serie A (LBA), the men's top tier professional basketball division of the Italian basketball league system (LBA). The regular season began on October 7, 2018, and finished on May 12, 2019, with the playoffs started on May 18 (dependent on an Italian club qualifying for the 2019 EuroLeague Final Four, 2019 EuroCup Playoffs or for the 2019 Champions League Playoffs) and finished on June 22.

As in previous years, Molten Corporation provided the official ball for all matches.

AX Armani Exchange Milano were the defending champions.

Umana Reyer Venezia won their 4th title by beating Banco di Sardegna Sassari in game 7 of the finals.