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Dunkin’ is America’s favorite all-day, everyday stop for coffee, espresso, breakfast sandwiches and donuts. The world’s leading baked goods and coffee chain, Dunkin’ serves more than 3 million customers each day. With 50+ varieties of donuts and dozens of premium beverages, there is always something to satisfy your craving.
Dunkin’ is proud to serve Port Jefferson, NY for all breakfast and snacking needs. Stop by today to try a classic favorite or a new featured product!
Just went in this morning, poor woman working by herself trying to do the best she can. What grinds my gears is I know what day old doughnuts taste like and they’re dishing them up there. NEVER AGAIN!!
JJ
Jackie jarosch
Dec 23, 2025
5.0
Always greeted with a smile and my coffee is always just right!!
HR
Haydee Ruiz
Nov 22, 2025
1.0
Who ever is in charge at night the main guy who is usually there is by far the rudest person there. I walked out the other night because he was sooo rude that instead of fighting with someone like that I left. Would neverrrr come here again
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