« All EventsMason Disick’s BirthdayDecember 14« You’re On MuteCupcake Day »Mason Disick is 17 on December 14, 2026. Send some birthday love their way. Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Share:FacebookXWhatsAppThreadsTextMore… Details Date: December 14 Event Tags:Birthdays, DidYouKnow, WhatzToday