The 2002–03 First League of Serbia and Montenegro (in fall season First League of FR Yugoslavia) was the eleventh and last season as FR Yugoslavia and (after was the country renamed in February 2003) first season of the Serbia and Montenegro's top-level football league since its establishment.
It was contested by 18 teams, and Partizan won the championship.
Mladost Lučani, Zvezdara, Mladost Apatin and Radnički Kragujevac, were relegated to the Second League of Serbia and Montenegro.
The relegated teams were replaced by 2001–02 Second League of FR Yugoslavia champions, Radnički Obrenovac (North), Radnički Niš (East), Javor Ivanjica (West) and Mogren (South).
Champions: Partizan Belgrade (Coach: Ljubiša Tumbaković (until December) and Lothar Matthäus) Players (appearances/goals)[1]