The UEFA Europa League is an annual football club competition organized by the Union of European Football Associations (UEFA) for eligible European football clubs. It is the second-tier competition of European club football, ranking below the UEFA Champions League. The tournament was established in 1971 as the UEFA Cup and was rebranded as the UEFA Europa League in 2009. The competition features a group stage followed by knockout rounds, culminating in a final match held at a predetermined venue. The winner of the UEFA Europa League earns a spot in the following season's UEFA Champions League, making it a highly coveted trophy for clubs across Europe.

Chelsea FC has won the UEFA Europa League twice in their history. Their first triumph came in the 2012-2013 season when they defeated Benfica 2-1 in the final held in Amsterdam. The second victory occurred in the 2018-2019 season when they beat Arsenal 4-1 in the final held in Baku, Azerbaijan. These victories have solidified Chelsea's status as one of Europe's elite clubs and added to their impressive trophy cabinet.