Dunkin Donuts Free Donut Day 2025 Dates. Dunkin’ is offering free donuts in celebration of national donut day on june 7, 2025. By katherine rodriguez | nj advance media for nj.com

Dunkin’ has brought back its free donut wednesdays promotion, where customers can get a free doughnut with the purchase of any drink. What’s better than free coffee to kickstart the day?