List of top-division football clubs in UEFA countries

The Union of European Football Associations (UEFA) is the administrative and controlling body for European football. It consists of 54 member associations, each of which is responsible for governing football in their respective countries.

All widely recognised sovereign states located entirely within Europe are members, with the exceptions of the United Kingdom, Monaco and Vatican City. Eight states partially or entirely outside Europe are also members: Armenia, Azerbaijan, Russia, Georgia, Kazakhstan, Israel, Cyprus and Turkey. The United Kingdom is divided into the four separate football associations of England, Northern Ireland, Scotland, and Wales; each association has a separate UEFA membership. The Faroe Islands, an autonomous country of the Kingdom of Denmark, also has its own football association which is a member of UEFA. The football association of Gibraltar, a British Overseas Territory, was approved as a member by UEFA in 2013.Kosovo was approved as a member in 2016, even though it is claimed by Serbia and is not recognised by several other UEFA member states.

Each UEFA member has its own football league system, except Liechtenstein. Clubs playing in each top-level league compete for the title as the country's club champions. Clubs also compete in the league and national cup competitions for places in the following season's UEFA club competitions, the UEFA Champions League and UEFA Europa League. Due to promotion and relegation, the clubs playing in the top-level league are different every season, except in San Marino where there is only one level.

Some clubs play in a national football league other than their own country's. Where this is the case the club is noted as such.

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