This is a list of English football transfers for the 2002 summer transfer window. Only moves featuring at least one Premier League or First Division club are listed.
The summer transfer window opened on 1 July 2002, although a few transfers took place prior to that date. Players without a club may join one at any time, either during or in between transfer windows. Clubs below Premier League level may also sign players on loan at any time. If need be, clubs may sign a goalkeeper on an emergency loan, if all others are unavailable.
Specific
A transfer window is the period during the year in which a football club can add players to their squad who were previously under contract with another club. Such a transfer is completed by registering the player into the new club through FIFA. "Transfer window" is the unofficial term commonly used by the media for the concept of "registration period" as described in the FIFA Regulations on the Status and Transfer of Players. According to the rules, each national football association decides on the time of the 'window' but it may not exceed 12 weeks. The second registration period occurs during the season and may not exceed four weeks.
In professional football, a transfer is the action taken whenever a player under contract moves between clubs. It refers to the transferring of a player's registration from one association football club to another. In general, the players can only be transferred during a transfer window and according to the rules set by a governing body. A negotiated transfer fee is agreed financial compensation paid from an interested club, to the club that possesses the player's exclusive contracted playing rights. When a player moves from one club to another, their old contract is terminated whilst the player and their new destination club will both negotiate on new contract terms. As such, the transfer fee functions as financial compensation for the early mutually agreed termination of the contract of a professional football player. Transfer fees are contingent on the player’s current football abilities, future potential, duration of the existing contract, amount of future salary owed and the willingness of clubs to agree on an economic equilibrium through supply and demand.