Mercator Serbia (Serbian: Меркатор Србија, romanized: Merkator Srbija) also known as Mercator-S, is a Serbian supermarket chain and a part of Mercator Group, an international retail chain based in Slovenia.

[7] In October 2006, Mercator acquired 76% of Rodić M&B company for 116 million euros, becoming the major shareholder in Roda Supermarkets.

The takeover was approved by the Serbian Commission for the Protection of Competition in December 2013.

[13] As of December 31, 2018, Mercator operates 321 retail stores in Serbia, including 241 Idea markets, 35 Idea supermarkets, 30 Roda markets, 6 Roda megamarkets, and two Mercator hypermarkets.

[1] In August 2019, the Mercator Group initiated the process of selling an additional 12 supermarkets across the former Yugoslavia region in order to reduce debts.