Home › Venues › Onyx Onyx Tickets Buy tickets for concerts at Onyx in Guelph, ON. No Upcoming Events No upcoming events scheduled at Onyx. Please contact us with any corrections. Hotels & Lodging Near Onyx About the Venue Onyx At-a-Glance Address12 Wyndham St N.Guelph, Ontario N1H 4E5Canada Map & Directions Advertisement