At the start of the 2009–10 season, Doyle joined Leeds United on a season long loan and made his first team début in the first game of the season,a win against Exeter. Having become first choice in midfield Doyle said in an interview to Yorkshire Evening Post on in October that he would love to make his loan move from Coventry permanent, and he hoped that if he could impress manager Simon Grayson enough and earn Leeds promotion that it would help his chances in securing a permanent contract at the Elland Road club. In his first six-months at Leeds, Doyle has been a regular starter partnering either Neil Kilkenny or Jonathan Howson in centre midfield, with Doyle only missing games through suspension or being rested by Simon Grayson for squad rotation.