The 2013 season of the Esiliiga, the second level in the Estonian football system, is the twenty-third season in the league's history. The season officially began on 3 March 2013 and ended on 10 November 2013. However, on 3 March the Estonian Football Association announced that all matches scheduled for 3 March 2013 would be postponed due to heavy snowfall. The previous league champions Infonet were promoted to Meistriliiga while Pärnu Linnameeskond and Kohtla-Järve Lootus were relegated to Esiliiga B division. For this season those three teams are replaced by Jõhvi Lokomotiv from II Liiga East/North division and Viljandi Tulevik and Vändra Vaprus from II Liiga West/South division.
<small>Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players and Managers may hold more than one non-FIFA nationality.</small>
At season's end, the runners-up of the 2013 Esiliiga will participate in a two-legged play-off with the 9th place club of the 2013 Meistriliiga for the spot in next year's competition.
At season's end, the 8th place club of the 2013 Esiliiga will participate in a two-legged play-off with the 3rd place club of the 2013 Esiliiga B for the spot in next year's competition.