Onestar Old Fashioned Hamburgers
Our verdict
Book Onestar Old Fashioned Hamburgers for a focused, casual American-style burger stop in Gangnam, especially if the Patty Melt or One Star Deluxe is the draw. It is better for lunch, solo dining, and low-key meals than for groups, special occasions, or dietary-heavy planning.
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- Address
- 23 Nonhyeon-ro 26-gil, Gangnam District, Seoul, South Korea
- Phone
- +82 2-578-4377
- Hours
- Mon–Fri 11 AM–3 PM, 5–9 PMSat–Sun 11 AM–9 PM
- Directions
- Get directions
The menu
What to order
- One Star Deluxe Burger
- Cheeseburger
- Patty Melt
- Chili Cheese Fries
- Onion Rings
For Seoul planning, use Pearl’s broader Seoul guides to compare other dining, hotel, bar, and experience options generically, then anchor this stop around Onestar Old Fashioned Hamburgers if you want a casual classic American-style handmade burger. It is most useful as a clear, low-fuss meal within a larger day, especially when a simple burger order is exactly the point.
Frequently asked questions
What should I wear to Onestar Old Fashioned Hamburgers?
Casual clothes fit this place. The dress code is casual, and the venue is in Seoul.
Does Onestar Old Fashioned Hamburgers handle dietary restrictions?
If that matters, check the venue's official channels for the latest details before you go.
How far ahead should I book Onestar Old Fashioned Hamburgers?
Plan around the posted hours and check the venue's official channels for the latest booking information.
What should I order at Onestar Old Fashioned Hamburgers?
The confirmed focus is classic American-style handmade burgers, with signature dishes including the One Star Deluxe Burger, Cheeseburger, Patty Melt, Chili Cheese Fries, and Onion Rings.
Is lunch or dinner better at Onestar Old Fashioned Hamburgers?
Both lunch and dinner are supported by the hours. The venue is open 11 AM to 3 PM and 5 to 9 PM Monday through Friday, and 11 AM to 9 PM on Saturday and Sunday.
Is Onestar Old Fashioned Hamburgers worth the price?
It can be, if you want a classic American-style handmade burger meal in Seoul at about $15 per person. The strongest reason to go is the straightforward burger-and-sides focus.
Is Onestar Old Fashioned Hamburgers good for a special occasion?
It is best framed as a casual burger meal. The dress code is casual, so it makes more sense for an easy Seoul stop than for a formal occasion.
Details
- Classic
- Cozy
- Lively
- Casual Hangout
- After Work
- Solo
- Date Night
- Standalone
- Beer Program
- Corkage Allowed
- Street Scene
- A La Carte
- Beer
Current opening hours
- Monday
- 11 AM–3 PM, 5–9 PM
- Tuesday
- 11 AM–3 PM, 5–9 PM
- Wednesday
- 11 AM–3 PM, 5–9 PM
- Thursday
- 11 AM–3 PM, 5–9 PM
- Friday
- 11 AM–3 PM, 5–9 PM
- Saturday
- 11 AM–9 PM
- Sunday
- 11 AM–9 PM
Hours can change for holidays and private events. Last verified .
Small, casual burger joint with strong classic American diner vibes, simple interiors and a focus on the grill rather than decor, often described in reviews as feeling like a "real American burger" spot.