David Gillick is an Irish international track and field athlete. He began his education in Our Lady's Boys School and attended St Benildus College secondary school in Kilmacud. He studied at Dublin Institute of Technology before moving to Loughborough University in the United Kingdom to train as a full-time athlete with coach Nick Dakin. Gillick specialises in the 400 metres and he won the European Indoor Championship in 2005 and 2007, as well as the Irish National Outdoor Championship in 2006 and 2007. He set the Irish Indoor record of 45.52 seconds in the 2007 final. The time also beat the Irish outdoor record of 45.58 and was within the Olympic 'A' qualifying standard for the 2008 Games. On 4 July 2009 he ran 44.77 seconds in a race in Madrid to set a new national record. He is also the 2009 Irish national 200 m champion.

The 10th IAAF World Indoor Championships in Athletics under the auspices of the International Association of Athletics Federations (IAAF) were held in the Budapest Arena, Hungary between March 5 and March 7, 2004. A total off 139 countries were represented by 677 athletes at the championships.