David McCann (born 17 March 1973 in Belfast) is an Irish former professional road bicycle racer, who rode in the 1996, 2000 and 2012 Olympic Games.

He last rode for the Synergy Baku Cycling Project, an Azerbaijan-registered UCI Continental team.

On 20 September 2009, McCann broke Chris Boardman's long-standing British 25 mile time trial record in Port Talbot.

He rode on the Irish three man team for the 2010 World Championships alongside Nicolas Roche and Matt Brammeier, finishing 68th.

Like several other athletes suspended around this time, McCann was sponsored by sport nutrition company Maximmuscle.