Liga Nacional de Fútbol Americano (LNFA) is the name of the top american football league which operates in Spain. It was founded in 1995 after the merge of several previous Spanish competitions.
The league is run by the Spanish Federation of American Football (Federación Española de Futbol Americano (FEFA) in Spanish language).
At the end of the season, league's champion and runner up clinch bids to compete at next year's European Football League, while third and fourth teams classify for the EFAF Cup.
There has been changes in the number of teams throughout the years. Since 2014, teams are divided into Serie A, with the top six teams, and second tier Serie B with 14 teams compiting in 3 conferences.