Adrian Neil Boothroyd (born 8 February 1971) is an English former footballer who was most recently the manager of Indian Super League club Jamshedpur.

His tactical nous and drive impressed, and he left Peterborough in 2001 to join Norwich City as their youth team coach under Nigel Worthington.

After two years at Carrow Road, Boothroyd assumed the positions of Youth Development Officer and Technical Director at West Bromwich Albion, joining in October 2003.

At the beginning of the 2005–06 season, Boothroyd said that his aim for the forthcoming campaign would be promotion to the Premier League, although many pundits regarded the club as likely to be relegated.

After overcoming Crystal Palace in the two-legged semi-final, Watford beat Leeds United 3–0 in the final to secure promotion to the Premier League.

The rapid improvement in Watford's results in his first season in charge led to Boothroyd winning the Championship Manager of the Month in February 2006.

[15] However, their form dropped in the second half of the season, and Boothroyd was criticised for his team selections, direct style of play and dealings in the transfer market.

[16] One win in thirteen going into the last game of the season saw Watford in danger of missing out on a play-off spot altogether but a 1–1 draw against Blackpool was enough to secure sixth place on goal difference ahead of Wolverhampton Wanderers.

After missing out on an immediate return to Premier League, Boothroyd announced his intention to re-build the side for the following season, and also change the team's style of play.

[18] On 2 September 2009, Boothroyd was announced as the new manager of League One side Colchester United, succeeding Paul Lambert.

[20] His first game in charge was on 7 August, in which Boothroyd led Coventry City to an opening day victory over Portsmouth with both goals from Freddy Eastwood.

On 14 March 2011, Boothroyd was sacked by Coventry City after a run of poor results, which saw the club win only once in sixteen league games.

[24] On 28 February 2014, Boothroyd was appointed manager of the England national under-20 football team,[25] but was replaced the following year in a reshuffle that saw him coach the under-19 side instead.

[32] On 17 May 2022 it was confirmed that Boothroyd would join Northern Ireland's coaching staff on a short-term basis due to the absence of Adam Sadler.