October 2025 Events (53 events)
Browse festivals, concerts, cultural events, sports, and more in Ottawa during October 2025.
Explore 613 - Halloween House Map
Interactive map showing the best Halloween decorations and haunted houses across Ottawa and Gatineau. Add your own decorated home to the map!
PumpkInferno at Upper Canada Village
Experience a nighttime walk through over 9,000 hand-carved illuminated pumpkins at this spectacular fall event running select nights from October 3 to November 1.
Wickedly Westboro Scavenger Hunt
Find five spooky buds hidden in Westboro Village business windows from October 10-31 for a chance to win one of ten ghoulish goodie bags valued over $100 each!
Pumpkins in the Park
Annual family-friendly Halloween neighbourhood event with music, kids activities, free yoga class, and pumpkin giveaway at Princess Margriet Park.
Hintonburg Howl-O-Ween
A spooktacular, dog- and family-friendly Halloween event with costumes, games, vendors and support for local rescues!
Ghosts of the Mackenzie King Estate
Join us for a moonlight walk around the mysterious Mackenzie King Estate nestled deep inside Gatineau Park, exploring the former Prime Minister's property and passion for spiritualism.
Wickedly Westboro Trick-or-Treating
Westboro Village's annual trick-or-treating event with support from Real Canadian Superstore. Get extra use out of those costumes and fill your bag with treats from local shops!
Trick or Treat with the Mayor
Come trick or treat with Mayor Mark Sutcliffe at Ottawa City Hall! Witches and reapers guard the entrance as visitors explore the shadowy halls and courtyard pumpkin patch.