Alan Ernest Devonshire (born 13 April 1956) is an English former professional footballer who is the manager of Maidenhead United.

He was a wide midfielder who played for West Ham United, with whom he won the FA Cup in 1980, and Watford, where he finished his career in 1992.

[3] He returned to Selhurst Park two years later, playing a couple of youth team games before again being released, this time by former West Ham player and Palace manager, Malcolm Allison.

Devonshire started playing for non-league Southall and caught the attention of League clubs such as Reading, Southampton, and Brentford.

During this period, two West Ham United scouts, Eddie Baily and Charlie Faulkner, spotted him playing for Southall and recommended him to Ron Greenwood.

He made the final pass for several goals scored by teammates Tony Cottee and Frank McAvennie in the 1985–86 season as West Ham finished third in the First Division.

His performance, and that of other experienced West Ham players Liam Brady, Phil Parkes, Alvin Martin and Julian Dicks, was described as "embarrassingly helpless" in a game known as the "St. Valentine's Day massacre".

These games were warm-up matches for the 1982 World Cup, but Devonshire was missing from England's final squad for the tournament.

Bobby Robson, England's new manager, attempting to rebuild an ageing team, selected Devonshire in October 1982.

[18] He was appointed joint manager of Maidenhead United in the summer of 1996 alongside Martyn Busby, taking sole charge in March 1997.

He then became the manager of Hampton & Richmond Borough in the Conference South, taking the Maidenhead first team squad with him, bar four – Ryan Ashe, Brian Connor, Adam Durrant and Lawrence Yaku – who stayed at York Road, and three – Richard Barnard, Andy Cook and Matty Glynn – who signed for Aldershot Town, Hendon and St Albans City respectively.

He then guided the club to a sixth-placed finish in their debut season at that level, missing out on the play-offs on goal difference on the final day.

Devonshire finally got Hampton & Richmond Borough promoted in style the following season, bringing the 2006–07 Isthmian Premier Division title to the Beveree.

Maidenhead also won the Berks & Bucks Senior Cup in 2017 after beating Hungerford Town in the final at Slough.

[31] Devonshire then led the Magpies to a top-half finish in their inaugural National League season, winning the Manager of the Month award in April 2018.

[32] In June 2021, Devonshire signed a new three-year contract until the end of the 2023–24 season,[33] which was a reward for keeping the part-time club safe from relegation at the top level of non-league football.

Devonshire's father, Les, was a professional footballer with clubs including Chester City and Crystal Palace.