"I'm absolutely delighted to be on the same trophy as names like those two,” he said.
"It's something special, a dream come true really. To win any title once is tough, but to win it three times is a fantastic feeling.
"I started a bit shakily - my timing was just a little bit off - but after my bogey on 11 I played pretty flawless golf."
This was the Irish Open champion’s seventh top-ten finish of the season and consolidates his position in the top ten of The Race to Dubai. The 33 year old also moves to just outside the top 30 on the Official World Golf Ranking.
For much of the day Gary Orr looked on course to end his 11 year wait for a third European Tour title as he moved two shots clear.
The Scot, playing on a medical exemption after being plagued by back problems last season, claimed both his previous victories back in 2000.
Sharing the lead overnight with South African James Kingston, the event was blown wide open when both dropped a shot at the first after overnight rain had delayed the final round by an hour.
Dyson’s challenge started well with a wedge approach to four feet at the second setting up a first birdie, only for a bogey at the fourth to set him back.
Orr made a number of clutch putts to save par, but found trouble on the ninth when he hooked his approach into thick rough down the left and dropped to ten under.
Lynn – whose only European Tour victory in 350 starts came in this event back in 2004 – went 11 holes without picking up a shot but was suddenly right back in it when he eagled the 12th from ten feet to be only one behind.
With the leaders still tightly bunched Dyson made a decisive move courtesy of some sensational iron play, birdieing the 12th, striking his tee shot at the 13th within two feet, and completing a hattrick of gains with an approach to four feet at the 14th.
That run took him into the lead for the first time and a four iron to 20 feet at the par five last set up another birdie, leaving Lynn and Orr two behind with three to play.
And while Lynn birdied the last, neither could prevent Dyson walking away with the €300,000 winner’s cheque.
“The big turning point for me was 13,” said Dyson. “I hit a good six iron, just pitched on the right hand side of the green, and got a really good bounce and just trickled down to about a foot.
“And that was a big turning point, because after, that I played some lovely golf. I hit a good shot into four feet on 14. A good shot into 15, and made a good two putt on 16.
“I gave myself a chance at 17 and then hit a beautiful four iron into the last.”
US Open Champion McIlroy goes back to third in the Official World Golf Ranking with his third place finish, while Orr’s 71 left him fourth and World Number Two Lee Westwood came fifth.