Zak's Diner

About Zak's Diner

Zak's Diner has been serving up nostalgic goodness in Ottawa's historic ByWard Market since 1986. This "locally world famous" diner captures the essence of classic North American diner culture with its retro atmosphere, friendly service, and satisfying comfort food that has delighted locals and visitors for nearly four decades.

Open 24 hours on Friday and Saturday nights, Zak's has become a beloved late-night destination for poutine cravings, all-day breakfast, and classic milkshakes. The restaurant's commitment to quality and consistency has made it a ByWard Market institution and a must-visit for anyone seeking authentic diner fare.

With multiple locations across Ottawa including ByWard Market, Kanata, Elgin, and Westboro, Zak's continues to expand while maintaining the same welcoming atmosphere and delicious food that made the original location famous.

What to Order

• Classic Poutine — Crispy fries, cheese curds, and gravy done the traditional way
• All-Day Breakfast — Fluffy pancakes, eggs any style, and classic breakfast combinations
• Burgers & Sandwiches — Juicy burgers and club sandwiches with fresh ingredients
• Milkshakes — Thick, creamy milkshakes in classic flavors

Visitor Information

• Hours: Sunday-Wednesday: 7am-10pm, Thursday: 7am-12am, Friday & Saturday: Open 24 hours
• Reservations: Walk-in friendly
• Price Range: $$

Getting There

• Address: 14 ByWard Market Square, Ottawa, ON K1N 7A1
• Neighbourhood: Downtown (ByWard Market)
• Parking: Public parking available in ByWard Market parkades