Casinos in Ontario: Full List and Locations

Ontario is Canada’s largest gambling market, home to the country’s biggest casino and more than two dozen land-based casino and slots venues spread from Niagara Falls to Thunder Bay. This guide lists the main casinos in Ontario, the city each one sits in and the company that runs it, then explains how gaming is regulated in the province, the legal age to play and what to expect on the floor. It is an informational reference only: there are no reviews, ratings or recommendations here.

How is gambling regulated in Ontario?

Gambling in Ontario is regulated by the Alcohol and Gaming Commission of Ontario (AGCO), while the government-owned Ontario Lottery and Gaming Corporation (OLG) legally “conducts and manages” casino gaming. This two-part arrangement follows Canada’s Criminal Code, which allows only a provincial government (or its agent) to run most forms of gambling. In Ontario that agent is OLG, and the AGCO is the independent regulator that sets the rules, registers the companies and people involved, and checks that everyone complies. You can read more about the national framework in our guide to gambling laws in Canada.

In practice, OLG does not run the casino floors itself. Since the mid-2010s the province has used a “service provider” model: OLG decides where casinos and slots sites go and keeps strategic oversight, but it contracts private operators to handle day-to-day operations, staffing, dining and entertainment under long-term Casino Operating and Services Agreements. The AGCO assesses the eligibility of those operators. Online gaming is handled separately, through the AGCO and its subsidiary iGaming Ontario, which oversees the regulated market of private internet casino and sportsbook brands.

Who owns and operates Ontario’s casinos?

Ontario’s land-based casinos are overseen by OLG but operated day-to-day by a small group of private companies that won regional “gaming bundles” through competitive procurement. Knowing the operator helps explain why nearby casinos share branding and loyalty programs. The main operators are:

• Mohegan (Mohegan Gaming & Entertainment) — runs the Niagara Gaming Bundle, meaning both Niagara Falls casinos. Mohegan took over on 11 June 2019 under a 21-year agreement; OLG still owns the properties.
• Caesars Entertainment — operates Caesars Windsor, the province’s border-city resort, on behalf of OLG.
• Gateway Casinos & Entertainment — holds the Central Gaming Bundle (Casino Rama and Georgian Downs) under a 23-year agreement signed in July 2018, and runs several venues in southwestern and northern Ontario.
• Great Canadian Entertainment — through Ontario Gaming GTA LP (a partnership of Great Canadian and Brookfield, branded One Toronto Gaming) operates the Greater Toronto Area bundle, plus the Elements Casino venues in southwestern Ontario.

This Ontario picture is part of the wider network of land-based casinos across Canada, where each province runs its own version of the conduct-and-manage model.

Which casinos are in Ontario?

Ontario has roughly two dozen casino and slots sites, from large resort casinos with hotels to smaller gaming floors attached to racetracks. The table below lists the province’s best-known full casinos with their city and operator; all are owned by OLG and run by the private service providers noted above.

Niagara Falls casinos

Niagara Falls is home to Ontario’s two busiest casinos, both operated by Mohegan as “Niagara Casinos.” Niagara Fallsview Casino Resort is the largest casino in Canada, with roughly 3,000 slot machines, around 130 gaming tables, a poker room, a hotel tower and a large entertainment theatre overlooking the falls. A short walk away, the older Casino Niagara offers a more compact floor with well over 1,000 slots, dozens of table games and a dedicated poker room. The two sit within the tourist district beside the falls, which makes them the most visited gaming destinations in the province.

Caesars Windsor

Caesars Windsor is Ontario’s border-city resort casino, sitting on the Detroit River across from Michigan. It opened in 1994 as Casino Windsor — Ontario’s first commercial casino — and was renamed Caesars Windsor in 2008 after a major expansion that added a second hotel tower and a 5,000-seat entertainment venue. It is owned by OLG and operated by Caesars Entertainment, and draws a large share of visitors from the neighbouring United States.

Casino Rama (Central Ontario)

Casino Rama Resort is central Ontario’s destination casino, located on the Rama First Nation near Orillia, about 90 minutes north of Toronto. It combines a gaming floor with a hotel, spa and a well-known concert amphitheatre. Day-to-day operations passed to Gateway Casinos in 2018 as part of OLG’s Central Gaming Bundle, which also includes the slots operation at Georgian Downs in Innisfil.

Greater Toronto Area casinos

The Greater Toronto Area is served by three casinos run by Great Canadian Entertainment. Great Canadian Casino Resort Toronto, in Etobicoke beside the historic Woodbine Racetrack, is one of the largest gaming floors in the country, with thousands of slots and table positions plus a hotel and dining. Pickering Casino Resort, east of the city, opened in 2021 and added an on-site hotel in 2023. Great Blue Heron Casino and Hotel, in Port Perry, rounds out the group; its land and casino are owned by the Mississaugas of Scugog Island First Nation, with Great Canadian as the operating partner.

Eastern, southwestern and northern Ontario

Beyond the big resorts, smaller casinos and slots venues serve the rest of the province. In the southwest and along the Highway 401 corridor you will find the Elements Casino brand (for example in Brantford, Elora and near Hamilton) operated by Great Canadian, and Gateway-run casinos in cities such as London and Point Edward. Eastern Ontario has the Shorelines casinos in Gananoque and Peterborough, plus a slots venue near Ottawa. In the north, Gateway operates casinos in Sudbury, Sault Ste. Marie, Thunder Bay and North Bay. Names and brands change over time as operators renovate and rebrand sites, so it is worth checking a venue’s current name before you travel.

What is the legal gambling age in Ontario?

The minimum age to gamble in Ontario is 19. That applies to entering any casino gaming floor, playing slots or table games, and betting with licensed online operators. Nineteen is also Ontario’s legal drinking age, so casinos commonly ask younger-looking guests for photo identification before letting them onto the floor or into licensed areas. The only lower-age exception in the province is buying lottery tickets, which is permitted from 18 — but that does not extend to casino play. The 19+ rule is consistent for every venue in the table above.

What games and amenities can you expect?

Ontario casinos offer the standard mix of electronic and table gaming, and the larger resorts add hotels, restaurants and live entertainment. Typical offerings include:

• Slot machines and electronic games — the biggest share of any floor, from penny slots to high-limit machines and electronic table games.
• Table games — blackjack, roulette, baccarat and various poker-based table games; the larger venues run dedicated poker rooms.
• Sports betting — single-event sports wagering is available at many venues and online since it became legal in Canada in 2021.
• Hotels, dining and shows — the resort casinos (Fallsview, Caesars Windsor, Casino Rama, Pickering) pair gaming with accommodation, multiple restaurants and concert venues.

If you are new to the floor, our explainer on how casino games work and the odds covers the main games and the house edge in plain English.

Can you gamble online in Ontario?

Yes — Ontario runs a regulated online gambling market that is separate from its land-based casinos. It launched on 4 April 2022 and is overseen by the AGCO, with iGaming Ontario managing the commercial side. Unlike the physical casinos, which OLG conducts and manages, the online market is open to many private casino and sportsbook brands that register with the regulator. The same 19+ age rule applies online, and OLG also runs its own site, OLG.ca, for lottery, online casino games and sports betting. Online play is convenient but does not change the odds of any game.

First Nations and casinos in Ontario

Two of Ontario’s casinos sit on First Nation land. Casino Rama is located on the Rama First Nation near Orillia and was for years the province’s dedicated First Nations casino, while Great Blue Heron in Port Perry is owned by the Mississaugas of Scugog Island First Nation. Both still operate within OLG’s provincial framework, with private service providers handling daily operations, which is why they appear alongside the other venues in the list above.

Common mistakes to avoid when visiting an Ontario casino

A few simple misunderstandings catch out first-time visitors. Keep these in mind:

• Assuming the age limit is 18. It is 19 for all casino gaming in Ontario; bring valid photo ID.
• Relying on an out-of-date venue name. Many casinos were rebranded under the gaming-bundle operators, so check the current name and address before you set out.
• Confusing online brands with the land-based casino. A casino’s physical floor and an online brand with a similar name are regulated and run differently.
• Thinking strategies or demo play improve your odds. They do not — every game carries a built-in house edge, and outcomes are random.
• Not setting a budget. Decide in advance what you can afford to lose and treat it as the cost of entertainment, not a way to make money.

Disclaimer

This article is for general information only and is not gambling, legal or financial advice. Casino ownership, operators, venue names, opening hours and rules can change; confirm details with the venue, OLG or the AGCO before relying on them. Gambling involves real risk and every game favours the house over time. If gambling is affecting you or someone you know, free, confidential help is available — see our guide to responsible gambling help and resources in Canada. You must be 19 or older to gamble in Ontario.

Frequently Asked Questions (FAQ)

How many casinos are there in Ontario?

Ontario has roughly two dozen land-based casino and slots sites, ranging from large resort casinos with hotels to smaller gaming floors attached to racetracks. The exact count shifts as OLG and its operators open, close or rebrand venues.

What is the biggest casino in Ontario?

Niagara Fallsview Casino Resort in Niagara Falls is the largest casino in Ontario and in Canada, with around 3,000 slot machines, roughly 130 gaming tables, a poker room, a hotel and a large theatre.

Who owns the casinos in Ontario?

The provincial agency OLG owns and legally conducts and manages the casinos, while private companies such as Mohegan, Caesars Entertainment, Gateway Casinos and Great Canadian Entertainment operate them day-to-day under long-term agreements.

What is the legal age to gamble in Ontario?

You must be 19 or older to enter a casino gaming floor, play slots or table games, or bet with a licensed online operator in Ontario. The age for buying lottery tickets is 18, but that does not apply to casino play.

Is online gambling legal in Ontario?

Yes. Ontario launched a regulated online gambling market on 4 April 2022, overseen by the AGCO with iGaming Ontario managing the commercial side. Registered private casino and sportsbook brands, as well as OLG.ca, can operate, and the 19+ age rule still applies.