Unió Esportiva Lleida was a Spanish football team based in Lleida, in the autonomous community of Catalonia. Originally founded as Lérida Balompié-AEM on 30 October 1939, it became Unión Deportiva Lérida in 1947, after a merger with CD Leridano. Dissolved in 2011, it held home matches at Camp d´Esports, with a 13,500-seat capacity. The soul of the club was reformed as Lleida Esportiu.

Lleida adopted the Catalan version of its name in 1978. The club has spent most of its history in the lower divisions. However, in the early 1950s and early 1990s, the club won promotion to La Liga.

During the 1990s the club was managed by Mané, Juande Ramos and Víctor Muñoz. All three subsequently became successful managers with other clubs. Since 1987 the club has organised its own summer trophy, the Ciutat de Lleida Trophy.

Football was first introduced to Lleida in 1910 by Manuel Azoz, a Barcelona business man. Among the earliest clubs in the city were Montserrat, founded in 1913 by Marist Brothers, and FC Lleida founded in 1914. Both played their early games in the district of Pla d’en Gardeny. In 1915, the Associació Cultural Lleidatana was founded by Catalan nationalists.

Lleida (Catalan pronunciation: [ˈʎɛjðə], locally: [ˈʎejðɛ]; Spanish: Lérida [ˈleɾiða]) is a city in the west of Catalonia, Spain, capital city of the province of Lleida.

Geographically, it is located in the Catalan Central Depression. The metro area has about 250,000 inhabitants. It is also the capital city of the Segrià comarca, as well as the largest city in the province. It had 137,387 inhabitants as of 2010^[update], including the contiguous municipalities of Raimat and Sucs.

Lleida is one of the oldest towns in Catalonia, with recorded settlements dating back to the Bronze Age period. Until the Roman conquest of the Iberian Peninsula, the area served as a settlement for an Iberian people, the Ilergetes. The town became a municipality, named Ilerda, under the reign of Augustus. It was reconquered in 1149, after being many centuries under the rule of the Moors, who had conquered the town in the 8th century. In 1297, the University of Lleida was founded, becoming the third oldest in the whole of Spain. During the following centuries, the town was damaged by several wars such as the Reapers' War in the 17th century and the Spanish Civil War in the 20th century. Since then, the city has been in a constant urban, commercial and demographic growth.