Rob McElhenney has filed to legally shorten his surname to “Mac,” telling fans in a one-minute video on X that endless misspellings and mispronunciations had cost him “days of my life.” The It’s Always Sunny in Philadelphia co-creator acknowledged the switch “kinda douchey,” but argued most people already call him Rob Mac and that the simpler name will travel better as his businesses expand abroad.
Court papers were lodged in Los Angeles on 28 June, listing Robert Dale McElhenney III as the petitioner and requesting an August hearing to formalise the change. Radio outlet WJBC reported that his professional credits will adopt the new surname once the order is signed.
The move arrives a week before Sunny launches season 17 on FXX and Hulu, prompting speculation that the paperwork doubles as a publicity jolt for television’s longest-running live-action sitcom. McElhenney dismissed that idea, saying the frustration predates this year’s press cycle and stems from an ancestor whose name was altered at a U.S. immigration desk.
Reaction online has oscillated between amusement and mild scorn: an A.V. Club headline joked that the actor pleaded for viewers “to stop caring,” while sports site Goal likened the announcement to his Wrexham A.F.C. co-owner Ryan Reynolds’ flair for viral marketing. Reynolds famously wrote a birthday song in 2023 to teach the world how to pronounce “McElhenney,” a gag now rendered moot.
Within the Sunny family, support is solid if not unanimous. Wife and co-star Kaitlin Olson said she backs the decision, though their two young sons prefer the original name they share with their father. Cast-mate Glenn Howerton, who recently revealed he almost quit the show, joked on a podcast that he has “zero interest” in learning yet another moniker for his long-time collaborator.
Industry watchers note that performers from Ramón Rodríguez to Vin Diesel have streamlined identities to boost recall; branding consultant Amanda Baird argues the change “makes sense in a world where a single mis-keyed search can lose a customer.” McElhenney, for his part, told The Wrap he is “not precious” about what friends call him offline—“Mac, Mac-El, whatever”—so long as contracts and passports match the shorter form.
