When Is National Mutt Day 2024 Theme. It celebrates mixed breed dogs, their unique looks and personalities, and. Started in 2005 by animal welfare advocate colleen paige, national mutt day is.

National mutt day, sometimes known as national mixed breed dog day, began in 2005. There’s no ifs, ands, or mutts about it — december 2 is national mutt day, and we’re here to celebrate.