The "Taylor Swift effect" is real ... just ask NFL commissioner Roger Goodell, who straight-up credited the pop superstar's relationship with Travis Kelce for bringing a ton of new eyes to the whole league.
Commish gushed about Traylor during his annual Super Bowl press conference in Vegas on Monday ... saying there's no denying the positive impact the coupling had on this past season.

SHE'S GOOD FOR BUSINESS NFL Network
While Goodell initially chalked it up to the good competition on the field -- noting 70% of games this season have been within one score in the fourth quarter -- he did admit Taylor's presence has been massive for the organization.