The 27 year old Dutchman began the round with a three shot lead and stayed clear all day, despite charges from BjÃƒÂ¶rn, who closed with a 68 to take second place two shots back from Luiten's 17 under par total, and China's Liang Wenchong, whose 66 gave him a share of third place alongside Frenchman Romain Wattel (69).
Luiten looked comfortable all week at Diamond Country Club in Austria, and even an hour's suspension for thunderstorms late in the final round could not derail his march to the title.
"It's a great feeling and it's been a great week," said Luiten, whose first win came in the 2011 Iskandar Johor Open. "It was a long day and I started with a three-putt for bogey. But I was hitting the ball really nicely and I was just trying to hit the greens and two-putt and let the others chase me.
"I made a few mistakes on the greens but after the birdie at the 16th I had a cushion and it was nice to finish with two pars to get the trophy.
"The break came at a good time because I wasn't playing that well. I had some food and tried to refocus, and then went back out to try to make par and sneak in a couple of birdies, and that's what I did."
Miguel Angel JimÃƒÂ©nez was in contention but struggled to a 75, while young Austrian amateur Matthias Schwab finished with a 69 for a share of 14th place, alongside another home favourite, Bernd Wiesberger, the 2012 champion.
Daniel Gaunt was the only Australian to make the cut but a final round of 77 saw him finish well back in 66th position.
LEADING FINAL SCORES:
271 J Luiten (Ned) 65 68 67 71,
273 T BjÃƒÂ¶rn (Den) 71 70 64 68,
274 L Wen-Chong (Chn) 67 72 69 66, R Wattel (Fra) 68 68 69 69,
275 J Campillo (Esp) 70 67 66 72, P Waring (Eng) 67 67 72 69,
276 E De La Riva (Esp) 69 65 69 73,
277 G Bourdy (Fra) 70 68 70 69,
278 L Slattery (Eng) 71 68 70 69,
279 A Levy (Fra) 66 75 68 70, S Kapur (Ind) 68 72 71 68, G Storm (Eng) 66 74 71 68, L Gagli (Ita) 72 67 68 72,
Want video tips delivered straight to your inbox? Subscribe to iseekgolf.com newsletters.