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Park Slope4.8Verified September 7, 2026

OS Café

535a 6th Ave, Brooklyn, NY 11215, USA

OS Café
OS Café interior
OS Café detail
4.8Google Rating(103 reviews)

What to know

Specialty coffeeGood pastriesBreakfastDessertLaptop friendlyFree WiFiOutdoor seatingDine-inTakeout

At a Glance

  • $

Hours

Sunday
8:00 AM to 5:30 PM
Monday to Friday
7:30 AM to 4:30 PM
Saturday
8:00 AM to 5:30 PM

What regulars say

Customers love OS Café for its welcoming atmosphere, delicious homemade baked goods, and high-quality drinks. The café's quaint and peaceful ambiance makes it an ideal spot to relax and enjoy a cup of coffee or tea. The staff is also praised for being lovely and kind.

delicious pastriesexcellent coffeecozy atmospherewelcoming staffquaint seating

Synthesized from recent Google reviews

Frequently asked

Where is OS Café?
OS Café is at 535a 6th Ave in Park Slope, Brooklyn.
How is OS Café rated?
OS Café has a 4.8-star rating from 103 Google reviews.
Can you work from OS Café?
Yes, OS Café is laptop-friendly and works for getting things done. It has WiFi.
Does OS Café serve specialty coffee?
Yes, OS Café serves specialty coffee.
Does OS Café have outdoor seating?
Yes, OS Café has outdoor seating.

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About OS Café

OS Café is a small specialty coffee shop on 6th Avenue that bakes all of its pastries and treats in-house and runs the kind of tight, considered program that has earned it a regular base of Park Slope locals. The space is intimate, design-conscious, and built around the coffee bar as the focal point. The coffee program runs on locally-roasted third-wave beans, with espresso pulled tight and rotating seasonal drinks. The in-house pastry program is what genuinely sets the shop apart: fresh croissants, scones, and seasonal items that demonstrate real baking discipline. A serious neighborhood cafe that punches above its size.

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