| Event Name | Dates | Day/Duration | Website URL | Description | Location/City | Ticket Pricing |
| Niagara Icewine Festival | Jan 16–18, 23–25, 30–Feb 1 | Various | https://www.visitniagaracanada.com/events/niagara-icewine-festival-2026/ | Celebration of Niagara Icewine, featuring tastings and winter festivities. | Niagara-on-the-Lake | Varies (from $25 to $60 depending on event) |
| Stratford Winterfest | Jan 24 | Sat | (Local Stratford event page, no central URL available) | Winter-themed festival with ice sculptures and local vendors. | Stratford | Free entry, activity pricing varies. |
| Winterloo Festival | Jan 24 | Sat | (Community event info; no dedicated site found) | Celebrating winter with outdoor activities in the city of Waterloo. | Waterloo | Free |
| Fire and Ice Winter Festival | Jan 31–Feb 1 | Sat–Sun | (Event page varies yearly; no official site found) | Winter celebration with fire and ice sculptures and entertainment. | Caledon | Free entry, food & activity pricing varies. |
| Team Canada FanFest | Feb 7–8 | Sat–Sun | (Seasonal event; check host city sports tourism page) | Celebration of Canadian sports with fan engagement activities. | Toronto | Free entry. |
| Hamilton Music Festival | Apr 6–May 1 | Ongoing | (See local Hamilton festival listings) | Music festival showcasing local and international talent. | Hamilton | Varies, generally free and ticketed performances. |
| Toronto Animation Arts Festival International (TAAFI) | Apr 8 | Wed | https://taafi.com/ | Festival celebrating animation with screenings, panels, and industry showcases. | Toronto | $15 to $25 for screenings and workshops. |
| FilKONtario | Apr 17–19 | Fri–Sun | https://filkontario.com/ | Festival dedicated to science fiction and fantasy literature. | Markham | Day passes from $25. |
| CISMF Music Festival | Apr 18 | Sat | (Organized by CIS Ontario — likely via CISOntario.ca) | Music festival celebrating different genres. | Toronto | Free entry, some ticketed performances. |
| Lambton County Music Festival | Apr 20–May 1 | Tue–Fri | (Local festival info at Ontario festivals calendar) | Community music festival showcasing local talent. | Sarnia | Varies, mostly free performances. |
| Stratford Festival | Apr 21–Oct | Ongoing | https://stratfordfestival.ca/ | World-renowned theatre festival with Shakespearean and contemporary productions. | Stratford | From $30, varies by performance. |
| Ottawa PoutineFest | May 1–3 | Fri–Sun | https://www.poutinefest.com/ | Celebration of Canada’s iconic dish, featuring poutine vendors from across the country. | Ottawa | Free entry, food prices vary. |
| Canadian Tulip Festival | May 8–18 | Thu–Sun | https://tulipfestival.ca/ | Canada’s largest tulip festival with art, music, and a beautiful display of tulips. | Ottawa | Free entry, some ticketed events. |
| Vaughan Ribfest | May 15–18 | Fri–Mon | https://vaughanribfest.com/ | Annual rib and BBQ festival with live entertainment. | Vaughan | Free entry, food & drink prices vary. |
| Canada Day celebrations | Jul 1 | Wed | https://www.canada.ca/en/canadian-heritage/campaigns/canada-day.html | National celebrations marking Canada’s birthday with parades, fireworks, and events. | Various across Ontario | Free entry. |
| Salsa on St. Clair Street Festival | Jul 11–12 | Sat–Sun | https://salsaintoronto.com/events/salsa-on-st-clair/ | Toronto’s largest salsa festival, celebrating Latin music and dance. | Toronto | Free entry. |
| PanAmerican Food & Music Festival | Jul 24–26 | Fri–Sun | (Toronto events calendar) | Festival celebrating the culture, music, and cuisine of Latin America and the Caribbean. | Toronto | Varies. |
| VELD Music Festival | Jul 31–Aug 2 | Fri–Sun | https://veld.to/ | Toronto’s largest electronic music festival, featuring international DJs. | Toronto | From $99 for general admission. |
| Fergus Scottish Festival & Highland Games | Aug 7–9 | Fri–Sun | https://fergusscottishfestival.com/ | Celebrating Scottish culture with games, music, and food. | Fergus | Day passes from $15. |
| Canadian National Exhibition | Aug 21–Sep 7 | Ongoing | https://www.theex.com/ | The largest annual fair in Canada, with rides, games, exhibits, and concerts. | Toronto | From $20 for entry. |
| Mississauga ItalFest | Aug 21–22 | Fri–Sat | https://www.italfest.com/ | Celebrating Italian culture through food, music, and dance. | Mississauga | Free entry. |
| Sun Life Waterloo Busker Carnival | Aug 27–30 | Thu–Sun | https://www.waterloobuskers.com/ | Street performers showcase their talent at the festival. | Waterloo | Free entry, tips encouraged. |
| Winona Peach Festival | Aug 28–30 | Fri–Sun | (Hamilton community festival; check city site) | A family-friendly festival with peach-based products, food, and entertainment. | Winona | Free entry. |
| Ontario Culture Days | Sep 18–Oct 4 | Fri–Sun | https://onculturedays.ca/ | Celebrating arts, culture, and heritage across Ontario. | Various | Free. |
| Kitchener–Waterloo Oktoberfest | Oct–Early Nov | Ongoing | http://www.oktoberfest.ca/ | Largest Bavarian festival in North America, celebrating food, beer, and traditions. | Kitchener-Waterloo | Varies, mostly free entry to outdoor events. |