Basketball Club Žalgiris (Lithuanian: Krepšinio klubas Žalgiris), commonly known as BC Žalgiris, is a Lithuanian professional basketball team based in Kaunas, Lithuania. They compete domestically in the Lithuanian Basketball League (Lietuvos krepšinio lyga) and internationally in the EuroLeague as a long-term licensed team. Since the 2011–12 season, Žalgiris has played its home games at Žalgiris Arena in the New Town district of Kaunas.
Žalgiris is the most decorated basketball club in Lithuania, having won 26 domestic championships (most recently in 2025-26), five Soviet Union National League championships (the second most behind CSKA Moscow), and one EuroLeague championship. Many Lithuanian basketball legends that have gone on to gain international renown have played for Žalgiris, including Arvydas Sabonis, Modestas Paulauskas, and Šarūnas Jasikevičius. Eight of the fifteen Lithuanian basketball players to play in the National Basketball Association have played for Žalgiris or were part of the Žalgiris youth program at one point in their careers: Arvydas Sabonis, Šarūnas Jasikevičius, Donatas Motiejūnas, Mindaugas Kuzminskas, Darius Songaila, Martynas Andriuškevičius, Arnoldas Kulboka, and Ignas Brazdeikis.
The club's name commemorates the Polish–Lithuanian–Teutonic War's Battle of Žalgiris, also known as the Battle of Grunwald, in which the joint forces of the Grand Duchy of Lithuania and the Kingdom of Poland defeated the Teutonic Order in one of medieval Europe's largest battles. Žalgiris translates to "green wood" in Lithuanian.
