Food & Beverage · Diner

Parthenon Diner-Old Saybrook

809 Boston Post Rd, Old Saybrook, Connecticut, 06475

Google Maps Updated: 15 May 2026
Authenticity Score: 85/100
About

Parthenon Diner is a local staple known for massive portions and a classic retro vibe. Most folks love the hearty breakfast options and friendly service, though some have had issues with consistency and occasional service lapses. It is a solid spot for a quick, filling meal if you are passing through. The parking lot can be a bit of a headache, but the overall experience is usually spot on. It is a classic diner experience that gives you plenty of bang for the buck.

Our Review Process
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Most Relevant
10
Newest
20
Highest
20
Lowest

We analyze 70 Google Maps public reviews (Most relevant, Newest, Highest rating, Lowest rating) from every angle to find the real story so you know exactly what to expect. We use Artificial Intelligence to analyze these reviews and filter out spam to highlight only authentic feedback.

Performance Scores
Food Taste 78/100
Value for Money 82/100
Pro Tip

The pumpkin pancakes are a local favorite, but watch out for the parking lot exit.

Large Portions
Retro Vibe
Pros & Cons

✓ What Works Well

  • Huge portion sizes
  • Classic diner atmosphere
  • Friendly wait staff

✗ Areas to Improve

  • Difficult parking lot
  • Inconsistent service
  • Some menu items overpriced
Frequently Asked Questions
  • Is the diner open for breakfast all day?
  • Is there gluten-free bread available?
User Feedback

Great spot for a hearty breakfast

Service can be hit or miss

Portions are definitely enough for leftovers

Location Details
Street: 809 Boston Post Rd
City: Old Saybrook
State: Connecticut
Postcode: 06475
Country: United States
Location
809 Boston Post Rd, Old Saybrook, CT 06475
Quick Info
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