Federer, 36, who became the oldest men’s world number one after his semi-final victory on Saturday, broke his Bulgarian opponent early in the contest and cruised to a one-set lead at the Ahoy Rotterdam.
Playing flawless tennis, the 20-times major winner carried the momentum forward in the second set to seal the match in 55 minutes for his 97th career title and third in Rotterdam.
The Swiss, who won the Australian Open last month, also improved his head-to-head record against world number five Dimitrov to 7-0.
Visit news.dtnext.in to explore our interactive epaper!
Download the DT Next app for more exciting features!
Click here for iOS
Click here for Android