About Otc Bar & Grille

I’m excited to introduce Otc Bar & Grille Restaurant, a lively neighborhood restaurant located at 226 E Diamond Ave, Gaithersburg, MD 20877, United States, where casual comfort meets a come-as-you-are attitude. From the moment you walk in, the place feels welcoming and relaxed, the kind of spot where conversations flow easily and nobody’s in a rush to leave. Otc Bar & Grille is built around that easygoing restaurant vibe, making it a solid choice whether you’re stopping by after work, meeting friends for happy hour, or grabbing a quick bite between errands. The menu leans into comfort food that hits the spot without trying too hard, while still offering enough variety to keep things interesting for repeat visits. If you enjoy a good drink with your meal, you’ll feel right at home here, thanks to a well-rounded selection of alcohol that includes beer, wine, cocktails, and spirits, plus happy-hour drinks that add even more reason to linger a little longer. Coffee is also available, which makes the space feel just as suitable for a laid-back daytime visit as it does for an evening hangout. Service options are flexible and practical, so whether you prefer to dine in and soak up the atmosphere, grab takeaway on the go, or order delivery for a relaxed night at home, it fits smoothly into your routine. Vegetarian options are part of the lineup as well, making it easier for groups with different tastes to settle in comfortably. Happy-hour food and quick bites make spontaneous plans easy, especially when you want flavor without a long wait. What really stands out is how effortlessly everything comes together, the food, the drinks, the service, and the setting all working in sync to create a place that feels familiar even on your first visit, and that’s exactly what makes Otc Bar & Grille a go-to restaurant in the Gaithersburg area.

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Business Info

Service options

Service options

+ Delivery

+ Takeaway

+ Dine-in

Highlights

Highlights

+ Fast service

+ Great beer selection

+ Great cocktails

+ Serves local specialty

+ Sport

Popular for

Popular for

+ Breakfast

+ Lunch

+ Dinner

+ Solo dining

Accessibility

Accessibility

+ Wheelchair-accessible car park

+ Wheelchair-accessible entrance

+ Wheelchair-accessible seating

+ Wheelchair-accessible toilet

Offerings

Offerings

+ Alcohol

+ Beer

+ Cocktails

+ Coffee

+ Comfort food

+ Happy-hour drinks

+ Happy-hour food

+ Quick bite

+ Spirits

+ Vegetarian options

+ Wine

Dining options

Dining options

+ Breakfast

+ Brunch

+ Lunch

+ Dinner

+ Dessert

+ Seating

+ Table service

Amenities

Amenities

+ Bar on site

+ Toilet

Atmosphere

Atmosphere

+ Casual

+ Cosy

Crowd

Crowd

+ Groups

Planning

Planning

+ Accepts reservations

Payments

Payments

+ Credit cards

+ Debit cards

+ NFC mobile payments

+ Credit cards

Children

Children

+ Good for kids

+ High chairs

+ Kids' menu

Parking

Parking

+ Free of charge street parking

+ Free parking lot

+ Parking

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Hour time open

Right Now :

  • Monday: 07:00 PM - 11:00 PM
  • Tuesday: Closed
  • Wednesday: 07:30 AM - 02:00 PM
  • Thursday: 07:30 AM - 10:00 PM
  • Friday: 07:30 AM - 12:00 AM
  • Saturday: 08:00 AM - 12:00 AM
  • Sunday: 08:00 AM - 08:00 PM
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226 E Diamond Ave, Gaithersburg, MD 20877, United States

Reviews

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Awesome low-key restaurant in old town Gaithersburg. Lots of TVs for watching sports. Recommend by a few friends, I decided to try their burger and wow, burger was perfect. I had the Bang Bang burger and it was perfect for those, like me, who love spicy food.

- Lance C -

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As someone who just relocated from NJ all I can do is say thank you! Food in Maryland isn’t top tier let alone bar food, but OTC’s…. They remind me of home. Wings A-1! Not only were they fried hard the sauces were great! Also the service was phenomenal! The waiters were so pleasant and I wish we got everyone’s name today, 10/18/25 but thank you girls for giving us a new spot! I’ll

- Bria Wallace -

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OTC is my favorite place to eat in Gaithersburg, my husband and I wish it was open more nights a week! The chopped cheese, coconut shrimp, wings, pancakes, scrapple, nachos, are all amazing - I could go on and on. We love OTC soo much. On top of the food being great, the atmosphere is so fun and great for adults and kids.

- Caroline Crimmins -

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