Beating off a host of other tailored men to claim the accolade, including runner-up George Clooney and Daniel Craig, the father-of-four reigned proud.
‘Take That’ frontman Gary Barlow and Hugh Grant landed fourth and fifth spots in the poll carried out by Austin Reed to launch their charitable Suite Swap.
“Undoubtedly David Beckham is one of the most stylish men to grace the planet,” the Daily Mail quoted a spokesman as saying.
“His allure is that he can pull off the casual scruffy look but transforms himself in to a dashing gent when he dons a sharp suit.
“Equally George Clooney looks effortlessly debonair on the red carpet when he sports a tailored suit. A good suit can transform a man,” he added.
Formula 1 driver Jenson Button drove into sixth place as the best dressed suit wearer closely followed by Princes Harry and William.
Button’s team mate Lewis Hamilton was in ninth place followed by ‘Twilight’ actor Robert Pattinson.
Other men to carry off a good suit were named as ‘X Factor’ host Dermot O’Leary, ‘TOWIE’ heartthrob Mark Wright and ‘Little Britain’ star David Walliams.
Despite being known for his high waistbands Simon Cowell completed the poll in twentieth place.
The man who looks worst in a suit was Jeremy Clarkson, followed by Russell Brand.
The top 10 sexiest men in suits are:
1. David Beckham
2. George Clooney
3. Daniel Craig
4. Gary Barlow
5. Hugh Grant
6. Jenson Button
7. Prince Harry
8. Prince William
9. Lewis Hamilton
10. Robert Pattinson