David Gillespie Weir (born 10 May 1970) is a Scottish football coach and former professional player who is the technical director of Premier League club Brighton & Hove Albion.

Weir became the oldest Scotland player when he played in UEFA Euro 2012 qualifying matches in 2010, and he finished his international career with 69 caps.

Weir also won the 1993 Scottish Challenge Cup on 12 December, playing in the side that defeated St Mirren 3–0 at Fir Park in Motherwell.

[12] In the Merseyside derby match on 19 April 2003, Weir received a red card as Everton lost 2–1 and played with 9 men after Gary Naysmith was also sent off.

[13] He had a very successful time with the Merseyside club, playing regularly for eight years, making 269 appearances (scoring 10 goals in the process), playing in European competition, becoming club captain under two different managers – Walter Smith and David Moyes – and winning the bulk of his Scotland caps on the strength of his performances for the Toffees.

After his man-of-the-match performance against St Mirren on 8 April 2007, he revealed that he may remain at Rangers for the 2007–08 season after discussing the issue with his family.

Despite being in his late 30s, he managed sixty appearances that season and produced some outstanding performances alongside Carlos Cuéllar in the centre of defence.

[18] He was appointed Rangers' captain on 3 April 2009 after Barry Ferguson had been stripped the role following an incident whilst on international duty.

Weir won the League and Cup double in season 2008–09 with Rangers and signed a further one-year contract extension which saw playing into his forties.

Weir made his last appearance in the Champions' League Third qualifying round 1st leg against Swedish side Malmö FF.

[30] Weir temporarily retired from international football in 2002 after his performance in a UEFA Euro 2004 qualifying match against the Faroe Islands was criticised by manager Berti Vogts.

[34][35][36][37] On 24 August 2010, Weir was recalled to the Scotland squad at the age of 40 for the Euro 2012 qualifying matches against Lithuania and Liechtenstein in September 2010.

[43] When manager David Moyes left the club to replace Sir Alex Ferguson at Manchester United in May 2013, Weir was interviewed by Bill Kenwright for the vacant role at Everton, but the job instead went to Roberto Martínez.

[48] Following the departure of caretaker Alan Kernaghan, Weir was appointed as Mark Warburton's assistant manager at League One side Brentford on 16 December 2013.

[49] After a successful season which saw Brentford promoted to the Championship, Weir signed a new one-year rolling contract to remain with the Griffin Park club.

[50] On 17 February 2015, it was announced that Weir, Warburton and Sporting Director Frank McParland would leave Brentford at the end of the 2014–15 season.

[53] In February 2017 Rangers released an official statement claiming that Weir, Warburton and head of recruitment Frank McParland had resigned their positions, effective immediately.

[56] As of April 2019, Weir was working for Brighton & Hove Albion in a role in which he manages young players who are loaned out to foreign clubs.

[60] Kenzie made her senior team debut for Everton in January 2022, in the fourth round of the 2021–22 Women's FA Cup.