The 2018–19 Second Men's League of Serbia is the 14th season of the Second Basketball League of Serbia, the 2nd-tier men's professional basketball league in Serbia.
On 16 March 2020, the Basketball Federation of Serbia temporarily suspended its competitions due to the COVID-19 pandemic. On 2 June, the Federation canceled definitely the season due to the COVID-19 pandemic.
Teams
Promotion and relegation
Teams promoted to the First League (1st-tier) Kolubara LA 2003 Napredak JKP Teams relegated from the First League (1st-tier) Spartak Beovuk 72 Teams promoted from the First Regional League (3rd-tier) Radnički Beograd Sveti Đorđe Fair Play Železničar Teams relegated to the First Regional League (3rd-tier) Vrbas Rtanj Žarkovo Plana