By Natalie Monday, October 13, 2025

Tags: Canada's Wonderland Halloween, Halloween, Halloween Eastern Ontario, halloween events, halloween events 2024, halloween events in GTA, Halloween events in Niagara, Halloween events in Ontario, halloween events in Ottawa

Halloween in Ontario is an exciting time with events happening all across the province. Whether you’re in the GTA, Niagara region, or further north, there’s something spooky for everyone. Here’s a breakdown of Halloween events happening in 2025, categorized by region to help you find the perfect haunting adventure near you.   GTA (Greater Toronto…