The top 10 biggest casinos in Ontario in 2026 dominate with massive floors, luxury amenities, and record revenues. From Toronto's bustling spots to Niagara's giants, this review ranks them by size, games, and visitor appeal.
OLG-operated venues lead expansions, adding sportsbooks and live entertainment. Detailed breakdowns include square footage, slots/tables, hotels, and unique features for planning your 2026 visit.
1. Fallsview Casino Resort - Niagara
Canada's largest at 360,000 sq ft.
3,500+ slots, 100 tables, attached 2,500-room hotel.
Canada's largest at 360,000 sq ft. 3,500+ slots, 100 tables, attached 2,500-room hotel. 2026 upgrades include new high-limit salon and eSports arena. Annual visitors: 10M+.
- Giant poker room
- IMAX theater onsite
- Waterpark access
2-3. Casino Niagara & OLG Stage
Adjacent to Fallsview, 185,000 sq ft combined. Focus on slots (1,600) and bingo hall. Renovated 2026 with Asian gaming pits. Perfect for budget players.
- Live concerts at Stage
- Free shuttle between sites
- High RTP progressives
4. Woodbine Casino - Toronto
300,000 sq ft racetrack-casino hybrid. 3,000
slots, year-round horse betting. 2026 VIP expansions
300,000 sq ft racetrack-casino hybrid. 3,000 slots, year-round horse betting. 2026 VIP expansions and Michelin dining. GTA's top draw.
- Racetrack views
- Sports lounge
- Private boxes
5. Casino Rama - Orillia
260,000 sq ft entertainment complex. 2,500 slots, 110 tables, 2,200-room hotel. Stars like Celine perform 2026. Remote luxury escape.
- Concert venue capacity 5,000
- Spa and golf
- High-stakes salons
6-10: GTA & Regional Powerhouses
Durham, Pickering, Ajax, Gananoque, Kawartha. Each 100K+ sq ft, growing with 2026 OLG investments. Pickering's new 2026 opening boasts 1,500 slots.
- Durham: 1,800 slots
- Pickering: Modern sportsbet
- Ajax: Lakeside views
- Gananoque: Hard Rock brand
- Kawartha: Family entertainment
Frequently Asked Questions
Which has most slot machines?
Fallsview with 3,500+ in 2026.
Best for poker?
Casino Rama's dedicated room.
Are they open 24/7?
Yes, all major Ontario casinos.
Age requirement?
19+ for all floors.
Free parking?
Valet free with play at most.