David William Moyes (born 25 April 1963) is a Scottish professional football manager and former player, who is the manager of Premier League club Everton. He was the 2003, 2005 and 2009 League Managers Association Manager of the Year. He is on the committee for the League Managers Association in an executive capacity.

Moyes made over 540 league appearances as a centre-back in a playing career that began with Celtic, where he won a championship medal. He then played for Cambridge United, Bristol City, Shrewsbury Town, and Dunfermline Athletic, ending his playing career with Preston North End. He became a coach at Preston, working his way up before taking over as manager in 1998, his first managerial position. Moyes led Preston to the Division Two title in 1999–2000 and the Division One play-off final the following season.

Moyes became manager of Everton in 2002. The club managed a fourth-place finish in the league in 2004–05, their highest since 1988, and played in the qualifying rounds for the UEFA Champions League the following season, the first time since 1970–71. Moyes led Everton to a runners-up finish in the 2008–09 FA Cup, their best performance in the competition since winning in 1995. Everton consistently finished between fifth and eighth in the league under Moyes, and at the time of his departure, was the longest-serving manager in the league behind Sir Alex Ferguson and Arsène Wenger, at 11 years and 3 months.

Moyes succeeded Ferguson as manager of Manchester United in June 2013, but with the club 7th in the league in April 2014 and unable to qualify for European competition, he was sacked. Moyes was appointed head coach of Spanish club Real Sociedad in November 2014, but was sacked after a year in charge. In 2016, he replaced Sam Allardyce as manager of Sunderland, but resigned at the end of the 2016–17 season after the club was relegated to the EFL Championship.

Moyes was appointed manager of West Ham in November 2017 and led the club out of the relegation zone to a 13th-place finish, but left at the end of the season when his contract was not renewed. He was appointed at West Ham for a second time in December 2019, following the sacking of Manuel Pellegrini. During his second stint, West Ham achieved two consecutive top-seven finishes in the Premier League, before victory in the 2022–23 UEFA Europa Conference League, beating Fiorentina in the final to achieve the club's first major silverware in 43 years. Moyes left West Ham in 2024, and returned to Everton the following year.

Moyes started his career at Icelandic club ÍBV, playing half a season with the youth team in 1978. Moyes enjoyed a career that encompassed playing at a number of clubs, usually as a centre-back, beginning at Celtic, where he won a championship medal and made 24 league appearances, and ending with Preston North End.^{[citation needed]}

As a player with Cambridge United, Moyes received abuse from teammate Roy McDonough for his religious beliefs; Moyes is a practising Christian. McDonough felt that religion was distracting them from focusing on playing; speaking of Moyes, Alan Comfort and Graham Daniels, he said: "The three of them sat in the changing room with a little black book, discussing their faith, when they should have been getting psyched up for a relegation scrap." Following a 3–3 draw with Wigan Athletic on 9 March 1985, McDonough, who was 26 years old at the time, states that he "battered" Moyes for not putting sufficient effort into the game.

While playing for Shrewsbury Town in 1987, Moyes began coaching at the nearby private school, Concord College, on the recommendation of Jake King as a way to supplement his wages. Moyes later made over one hundred appearances for Dunfermline Athletic between 1990 and 1993, including a starting appearance in the 1991 Scottish League Cup final.