David Stuart Byrne (born 5 March 1961 in Hammersmith, London) is an English former professional footballer.
Byrne was a winger and began his career with Gillingham. He moved to Millwall on 4 August 1986 for a fee of £5,000. He joined Cambridge United on loan on 8 September 1988 and Blackburn Rovers on loan on 23 February 1989. On 16 March 1989 he joined Plymouth Argyle on a free transfer. He later played for Bristol Rovers, Watford and went on loan to Reading and Fulham.
He joined Shamrock Rovers in January 1993 also on loan from Watford but only made four league appearances.
After returning to Watford joined Scottish side St. Johnstone and Partick Thistle.
He joined Walsall on loan in February 1994 and after leaving Partick played for St Mirren, Ayr United and Albion Rovers where he was player-coach in 1996. He also had a brief loan spell at Tottenham in 1995, featuring in their makeshift squad for the Intertoto Cup. He later coached the Plymouth Argyle youth team and was appointed as Director of Football at Plymouth College of Further Education.
In November 2006 he was assisting Ian Atkins on a non-contract basis at Torquay United. On 28 November 2006, Byrne left his post at PCFE when he was named as the new Youth Team Manager at Swindon Town working under former Plymouth Argyle boss Paul Sturrock.
After Sturrock left Swindon to take the role of managing his previous club, Plymouth, Byrne took temporary charge of Swindon. When Maurice Malpas became manager, Byrne became his assistant.
Byrne again became Caretaker manager of Swindon following the departure of manager Maurice Malpas, on 14 November 2008.
Following the news that Danny Wilson was confirmed as the new manager of Swindon Town, on 26 December 2008, David Byrne again reverted back to being assistant manager. It is not known how long he will be at the club as it has not yet be confirmed, nor denied, if Danny Wilson will be bringing his own backroom staff to the club.
On 16 June 2009, he was appointed Head Of Player Development at Swindon Town. He left that post in August 2010