The 2018–19 Lietuvos krepšinio lyga, also called Betsafe-LKL for sponsorship reasons, was the 26th season of the top-tier level professional basketball league of Lithuania, the Lietuvos krepšinio lyga (LKL). The Betsafe LKL championship started on 22 September 2018 and ended on 1 June 2019. Žalgiris achieved their 21st title overall, ninth consecutive.