Central Defender Danny Kelly made his debut for the Norwich City Under-18s in the 1-0 win against Fulham on 3rd February 2007, and was named man of the match. A product of Norwich's acadamy, although originaly with Cambridge United , Peterborough and Histon, he was offered a scholarship with the Canaries starting in the 2007/8 season. Along with David Cooper, he has had a trial with the Republic of Ireland Under-16s. Danny is the brother of former City scholar Ross Kelly and current scholar Sam Kelly

In February 2006, he was offered a scholarship with the Canaries to commence in August 2007.

In March 2007, Irish youth coach Sean McCaffrey said "Danny Kelly, who's a centre-half or centre-midfielder who also plays at Under-16 level. He is another skilful one and will be one to watch when he gets into full-time training at Norwich."

In the summer of 2008, Danny was called up to a training camp with the Republic of Ireland's Under-19 side; which he later captained.

In May 2009, Danny was rewarded with his first professional contract with the Canaries signing a one-year deal with a one-year option

Kelly was released on 14th May 2010 and had not played for the Canaries although he played 16 times for the Reserves in 2009/10 scoring twice. He was on the first team bench five times.

Kelly joined Barnet at the end of June 2010 and made his league debut in the 2-1 defeat to Chesterfield on 7th August 2010

He had made 4 appearances for Barnet before being loaned to Eastbourne Borough on 8th March 2011 for one month. He made his debut on the same day in a 2-1 defeat at Wrexham.

After Barnet's narrow escape from relegation to the Conference at the end of the 2010/11 season, Danny was released by new Barnet manager Lawrie Sanchez

He joined Cambridge City on 26th August 2011