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625 North Rd. Rte. 117, Groton, CT 06340
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Ranked #12 of 101 restaurants in Groton
Certificate of Excellence 2013
Price range: $50 - $70
Cuisines: American, Seafood, Steakhouse, Healthy
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Restaurant details
Good for: Romance, Doing business, Entertaining clients
Dining options: Breakfast/Brunch, Dinner, Reservations, Late Night
Dining style: Casual Dining
Description: Located just outside Mystic, CT, Octagon prides itself on offering the finest steaks and freshest seafood everyday. Our menu changes seasonally and celebrates local ingredients harvested right here in our beautiful state of Connecticut. To our pleasure, our guests are travelers from around the globe and neighborhood locals. From our open grill and wine cellar to our one of a kind artwork and glass sculptures, we truly believe dining should be an experience, not just a meal.
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105 reviews from our community

59% Recommend
Rating summary
Date | Rating
  • English first
  • German first
  • Spanish first
  • Any
English first
Huntington Beach, California
1 review
5 of 5 stars Reviewed April 8, 2014 via mobile

The best staff! And the best steak around. Probably the best beer and wine selection around as well.

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3 reviews 3 reviews
3 helpful votes 3 helpful votes
1 of 5 stars Reviewed April 8, 2014

Unfortunately we went here to enjoy a great meal with my in-laws. We arrived at a busy hotel and a very empty restaurant. The place was vacant, looked like no one had been there all day. I even walked in through the glass doors and around the grill/kitchen area and no one, nothing. This was on March 29, 2014, Saturday... More

Was this review helpful? Yes
WHGGuestService, Manager at Octagon, responded to this review

I’m sincerely sorry you were unable to enjoy an Octagon experience during your afternoon visit. We are indeed open during the hours of 11:00 am and 5:00 pm as our website notes. Our mid-day service is provided in our Lounge area. We found that this detail was not made clear on our website, so your comments have been acted on... More

Ludlow, Vermont
Senior Reviewer
6 reviews 6 reviews
3 restaurant reviews
5 of 5 stars Reviewed April 7, 2014

Wonderful Kobe beef steak and potatoes au gratin with a fruit basket with creme anglais sauce!!! Will definitely return when I attend this conference again! This is the second time I have eaten here.

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Canterbury, England, United Kingdom
2 reviews
5 of 5 stars Reviewed March 19, 2014 via mobile

Roger, our waiter provided us a fantastic evening out. His recommendation from the menu was spot on, scallops were fantastic, and the filet was perfection. He kept us well served with both drink and pleasant conversation. Amanda did a great job as well making us feel right at home in the pub. All in all could not have asked for... More

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Assonet, Massachusetts
1 review
5 of 5 stars Reviewed March 13, 2014

We visited Octagon Saturday March 8th for dinner. All four in our party ordered a variety of beef dishes. Every one of them was cooked tor liking and very flavorful. Excellent quality of beef product. Side dishes are large enough to share and just as good. Try the au gratin potatoes. Tom was our waiter and his timing was great.... More

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Connecticut, USA
13 reviews 13 reviews
4 restaurant reviews
5 helpful votes 5 helpful votes
5 of 5 stars Reviewed March 1, 2014

Loved this restaurant. Food was exceptional, specials were quite different and very enjoyable. Our waiter was helpful and fun all in one package, loved him. atmosphere was lovely.

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WHGGuestService, Manager at Octagon, responded to this review

Thank you so much for your rave review! Octagon prides itself on exceptional food, engaging ambiance, and remarkable service. We are elated that you were able to experience these qualities first hand. We look forward to welcoming you back! More

Lauderdale by the Sea, Florida
Top Contributor
53 reviews 53 reviews
30 restaurant reviews
19 helpful votes 19 helpful votes
4 of 5 stars Reviewed February 28, 2014

Good food, the scallops are great! Great service , friendly, attentive.. and nice music.. enternatinemnet on Thursday evening!

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WHGGuestService, Manager at Octagon, responded to this review

We are delighted to hear that you thoroughly enjoyed your entire experience at Octagon! We love to know that our customers savor the great food, great service, and soothing ambiance. We look forward to seeing you again! More

Raleigh, North Carolina
Senior Contributor
28 reviews 28 reviews
11 restaurant reviews
4 helpful votes 4 helpful votes
3 of 5 stars Reviewed February 23, 2014

We had the pan roasted salmon. It was okay, but not great. A bit overcooked for our taste. The service was a little lacking, but they were busy and we were seated at table in the bar. On Thursday night, there was live entertainment in the bar area. They duo was pretty good.

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Middlebury, Connecticut
4 reviews 4 reviews
3 of 5 stars Reviewed February 23, 2014 via mobile

My wife and I were staying at the Mystic Marriott for a combination birthday Valentine's Day get away. Based on the website description, the write up and reviews, we thought the Octagon would be great for a romantic dinner. How mistaken we were. Yes, the food is good. That's good not exceptional which it should be given they are charging... More

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Senior Contributor
25 reviews 25 reviews
17 restaurant reviews
4 helpful votes 4 helpful votes
4 of 5 stars Reviewed January 31, 2014

Very good steak house. Fancy atmosphere. Pricey, but...as a good steak house, that's what they are. Every time I go there, I get the 24 ounce cowboy steak. Side dishes are extra. Great selection of wine Usually very good staff.

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