Left-sided midfielder Anthony McNamee joined Norwich City on 26th November 2009 on loan from Swindon Town. This loan lasted until 4th January 2010 upon which City made the transfer permanent for an undisclosed fee, with McNamee signing a 2 and a half year contract. He finished the season with 17 appearances and 1 goal.

McNamee started his career at Watford. He was given his debut by manager Gianluca Vialli on 16th March 2002 at home to Coventry City in a 3–0 First Division win. He continued to make substitute appearances for the remainder of the season, making his first start against Gillingham on the final day of the season, scoring his first professional goal in the process.

Concerns about his asthma limited his appearances in the following season and McNamee was loaned to Conference side Barnet in December 2003, but failed to make much of an impression.

McNamee made a number of appearances towards the end of the 2004–05 season, under both Ray Lewington and new manager Aidy Boothroyd. He extended his contract until 2008 and played more frequently as Watford finished third in the Championship. He was on the bench for the play-off semi-final legs against Crystal Palace, but did not play, and he was left out of the 16 for the final against Leeds United, where Watford clinched promotion to the Premiership. In February 2006, McNamee was selected for Peter Taylor's Under-21 Football League squad to face Italy's Serie B team, but didn't make the final team.

During the 2006/7 Premiership season, McNamee made seven appearances for Watford but was sent on loan to League One side Crewe Alexandra in March 2007 for the remainder of the season

On 18th January 2008, was sold to League One side Swindon Town for an undisclosed fee. He had made 103 appearances for the Hornets. He made his debut for Swindon in a 0–0 draw with Crewe Alexandra in January 2008 and scored his first goal for Swindon in April 2008 in a 6–0 win over Port Vale. Norwich and Portsmouth both showed interest in him during the summer of 2009.

At the time of his loan to Norwich, he had made 88 appearances for Swindon, scoring four goals.

He made 20 appearances during 2010/11 as Norwich won promotion to the Premiership

Out of favour during the 2011 pre-season, Anthony was given a free transfer and signed for MK Dons on 31st August 2011 on a one year deal with an option for a further 12months. He made his Dons debut on 3rd September 2011 as a late substitute in the 3-1 win at Carlisle.

On 24th November 2011, McNamee joined Wycombe Wanderers in search of first team football. He signed on a loan deal until 7 January 2012. He was then allowed to join Wycombe on a free transfer on 31st January 2012, having made only 7 appearances for the MK Dons. McNamee was on the bench when Wycombe lost to Notts County on 28th April 2012 and were relegated to League Two. McNamee was released by Wycombe on 9th May 2012.

In the summer of 2012, McNamee joined Bradford on trial and impressing, he was invited to the Bantams' pre-season tour of Ireland

On 31st August 2012, McNamee was one of a triple signing by Conference side Macclesfield, the others being defender Pablo Mills and striker Amari Morgan-Smith. McNamee made his debut as a substitute in the 4-3 win at Stockport on 4th September 2012. He made a total of five appearances for Macclesfield

In early January 2013, McNamee signed for League Two Aldershot. He played just one game, against Northampton on 22nd January, in a campaign in which Aldershot were relegated at the end of it

McNamee moved to Conference side Woking in the summer of 2013. He was released at the end of the 2013/14 season after failing to hold down a regular position in the starting line-up.

In July 2021 he was appointed manager of Enfield Borough who play in the Combined Counties League before leaving ahead of the 2023/24 season.