The 2004–05 First League of Serbia and Montenegro (officially known as the Meridian PrvaLiga for sponsorship reasons) was the third season of the Serbia and Montenegro's top-level football league since its establishment.
It was contested by 16 teams, and FK Partizan won the championship.
Budućnost Banatski Dvor, Napredak Kruševac and Radnički Obrenovac were relegated to the 2004–05 Serbian First League while Kom was relegated to the 2004–05 Montenegrin First League after the last season for finishing last.
The relegated teams were replaced by 2003–04 Second League of Serbia and Montenegro east, west, south and north champions Radnički Beograd, Hajduk Beograd, Budućnost Podgorica and Čukarički Stankom.
12 Nemanja Jovšić (1/0) 25 Ivica Kralj (24/0) 27 Đorđe Pantić (7/0) 02 Milivoje Ćirković (9/0) 04 Zoran Mirković (23/2) 05 Branimir Bajić (4/0) 13 Kim Chi-Woo (8/0) 14 Nenad Đorđević (27/2) 16 Ifeanyi Emeghara (24/0) 20 Milovan Milović (15/1) 24 Nemanja Rnić (17/2) 03 Dragoljub Jeremić (2/0)* 01 Simon Vukčević (26/10) 07 Nenad Brnović (25/6) 10 Dragan Ćirić (13/3) 11 Miroslav Radović (19/3) 18 Branimir Petrović (18/1) 21 Ivan Tomić (24/0) 22 Saša Ilić (22/16) 28 Albert Nađ (20/2) 43 Milan Srećo (1/0) 44 Stefan Babović (9/1) 47 Milan Smiljanić (2/0) 17 Branislav Atanacković (2/0)* 08 Pierre Boya (22/3) 09 Srđan Radonjić (17/10) 15 Obiora Odita (12/6) 34 Nikola Grubješić (23/11) 23 Bojan Brnović (1/0)* 50 Nenad Marinković (1/0)* Note: * Played only in the first part of the championship.