Adam Smith is a left sided midfielder who scored the equaliser in the prestigious youth friendly against Parma in October 2000 and won the Man of the Match award whilst only 16. He made his U19 Academy debut against Peterborough on 24th March 2001. Adam formerly attended Sprowston High School but spent three years as an Academy Scholar at Norwich City.

He had a good 2003 pre-season with the first team / reserves and Sammy Morgan commented "He's been progressing well.. looked good in pre-season so that bodes well for the future".

Adam was called up into Norwch's first team squad for the trip to Middlesbrough on 28th December 2004 as the Canaries had been hit by a horrific injury crisis. Despite this, Norwich announced on 26th January 2005 that they would not be offering professional contracts to third year scholars Adam Smith, Lee Blackburn, Olly Willis and Nicky Howell. "We've worked with the boys and when it comes to the crunch, a decision has to be made," said Nigel Worthington. "Unfortunately, from their point of view, the boys will not be taken on. We will do everything we can to help them move forward, whether that be in football or another field". Ricky Martin added the timing of the decision was made to give the players the chance to make other plans. "We've looked to make this decision at this time to enable the players to finish off the educational element of their scholarship and to make a decision as to whether to pursue their career with trials at another football club or to apply to university."

In mid February 2005, Adam had a trial with Bournemouth featuring in the Cherries 3-0 reserve defeat against Plymouth. On 22nd March 2005, he played for Northampton's reserves in a 2-0 win over their counterparts from Peterborough. In the meantime he played for Great Yarmouth in the Ridgeons League when not required for the Norwich youth team.

Adam joined Kings Lynn on 17th June 2005, one of five signings announced that day - the other being former Norwich midfielder Cedric Anselin, Boston United's Dean West, Grant Cooper from Hornchurch and Paul Kelly from Hemel Hempstead. Adam's form for the Linnets led him to being watched by a number of clubs higher up the football pyramid including Rushden & Diamonds. This led to a transfer to Peterborough United in November 2006 for a fee of £10,000 although officially the deal was for a loan until January 2007 when the transfer window re-opens. This could rise to £15,000 with add-ons.

Adam was loaned back to Kings Lynn in August 2007. Returning from Lynn, Adam was immediately loaned out again - this time to Boston United.

On 28th August 2008, Adam and Peterboorugh agreed to cancel his contract by mutual consent. He immediately rejoined Kings Lynn.

Not needed by new Linnets manager Carl Heggs in the summer of 2009, Adam signed on 3rd July 2009 , along with former Canary starlets Craig Bussens and Andrew Fisk and ex-Ipswich youngster Chris Bond for Ryman League newboys Lowestoft who had already recruited Matt Halliday and Greg Crane to their cause.

Adam retired at the end of the 2018/19 season having made 405 appearances for the Trawler Boys. He had scored 22 goals for Lowestoft. The strains of leaving his home near Norwich at 7am on Saturday matchdays and getting home late, to not getting home until after 10.30pm on training nights, Smith admitted that “being in this league” and travelling many miles for away matches had meant it was important to think about his family as well. “I am going to miss football massively, if circumstances were any different I am sure I would have carried on. I had a couple of offers and opportunities to move away (over the years), but I have thoroughly enjoyed my time here. We have had some great successes over the years, with some really good players and characters in the dressing room and the fans have been brilliant. I certainly believe the club is going in the right direction and there is a positive future for the club.”

On 7th October 2020 Smith came out of retirement to join Harleston Town of the Anglian Combination Premier Division.