The 25 biggest festivals in Ontario 2026
Festivals and open-airs in Ontario in 2026 — dates, line-ups, tickets and who's going.
88 events
1 Oct – 18 Jun 2027
1 free
Highlights: Niagara Falls International Marathon, Royal Agricultural Winter Fair, Alight at Night
Any time
Today26This weekend189This month958Next month992Free53Highlights980Festivals90Christmas markets11Halloween65Date night1371With kids821On your own1145With friends313After-work & aperitivo67Birthday15Hen and stag parties70Volunteering1Pumpkin patches6Foraging1Autumn foliage11Stargazing1Rainy day991Pantomime1Garba and dandiya nights1
Niagara Falls International Marathon
23 Oct 2026 · Niagara Falls
Market / fair
Royal Agricultural Winter Fair
5 Nov 2026 · Toronto
Alight at Night
27 Nov 2026 · Cornwall
Festival
Ball's Falls Thanksgiving Festival
October · St. Catharines
Festival
Kitchener-Waterloo Oktoberfest
October · Kitchener
Ontario Festival of Small Halls
October
Sports event
Toronto Waterfront Marathon
October · Toronto
Parade / celebration
Belleville Santa Claus Parade
November · Belleville
Festival
Guelph Film Festival
November · Guelph
1
Runs every yearUpper Canada Village
2
Runs every yearTicketsHarbourfront Centre
3
Runs every yearTicketsMuseum London
4
TicketsThe Burlington Performing Arts Centre
5
TicketsFirstOntario Concert Hall
6
TicketsThe Grand Theatre
7
Runs every yearSt. Francis Centre for Community, Arts & Culture
8
Runs every yearRiver Run Centre
9
Stoney Creek Recreation Centre
10
TicketsCapitol Centre
Questions
The 25 biggest festivals in Ontario 2026: what's on?
88 events between 19 Oct – 18 Jun 2027. Among them: Niagara Falls International Marathon · Royal Agricultural Winter Fair · Alight at Night.
What is the next event in Ontario?
Sleuth on 19 Oct in Toronto.
Which events in Ontario are free?
1 event is free: Indigenous Art Market & Cultural Celebration.
What are the biggest events in Ontario?
The named events of the place: Niagara Falls International Marathon (23 Oct) · Royal Agricultural Winter Fair (5 Nov) · Alight at Night (27 Nov) · Ball's Falls Thanksgiving Festival (October).
Where in Ontario is most going on?
Most events are in Toronto (13) · Ottawa (10) · Ajax (8).