The Office of the Registrar General registers all births, deaths and marriages that take place in Ontario.
Office of the Registrar General
189 Red River Road
P.O. Box 4600
Thunder Bay, Ontario
P7B 6L8
Telephone Number: 1-800-461-2156
Birth registrations are submitted electronically and directly to Service Ontario.
Application for a birth certificate is made directly to the Office of the Registrar General at the address listed above, along with the appropriate fee.
Applications for birth certificates may be obtained at the Clerk's Office, 2nd floor, City Hall, 545 Talbot Street, St. Thomas or downloaded from the Ministry's website.