St. John Ambulance Canada is part of an international organization, The Grand Priory of the Most Venerable Order of the British Realm of the Order of the Hospital of St. John of Jerusalem. This organization is commonly known as the The Most Venerable Order of St. John.
The Most Venerable Order of St. John operates as St. John Ambulance or St. John. This is an international organization that operate in about 40 countries (also refered to as Priories or Associations). St. John is administered independently by the national office of each country; however, the organization is unified by similar mission statement, operations, history, and traditions. For more information about St. John International, check out: http://www.orderofstjohn.org.
The following chart contains contact information and activities of some of the major Priories and Associations of St. John.
| Region | Country | Phone | Website | FA Training | FA Products | Volunteering | Donation |
| Africa | Kenya | (020)3340262 | www.stjohnkenya.org | Yes | Yes | Yes | Yes |
| Africa | South Africa | 086-101-7404 | http://www.stjohn.org.za/ | Yes | Yes | Yes | Yes |
| Africa | Malawi | 265-1-840-170 | http://www.stjohnmalawi.org/ | Yes | Yes | Yes | |
| Africa | Uganda | 256-414-230-671 | http://www.stjohnuganda.org/ | Yes | Yes | Yes | Yes |
| Africa | Zambia | 0211-241823 | http://www.stjohnzambia.org/ | Yes | Yes | Yes | |
| Asia | Hong Kong | 2530-8020-8024 | http://www.stjohn.org.hk | Yes | Yes | Yes | Yes |
| Asia | Singapore | 6298-0300 | https://www.stjohn.org.sg/ | Yes | Yes | Yes | Yes |
| Asia | Fiji | 679-3302-584 | https://www.stjohnfiji.org | Yes | Yes | Yes | Yes |
| Asia | Malaysia | 603-9285-1576 | http://www.sjam.org.my/ | Yes | Yes | Yes | Yes |
| Asia | Papua New Guinea | 675-7111-1234 | http://www.stjohn.org.pg/ | Yes | Yes | Yes | Yes |
| Caribbean | Bermuda | 441-236-7831 | http://sjabermuda.org/ | Yes | Yes | Yes | |
| Caribbean | St. Lucia | 758-451-6122 | http://www.stjohnstlucia.org/ | Yes | Yes | Yes | |
| Europe | England | http://www.sja.org.uk | Yes | Yes | Yes | Yes | |
| Europe | Scotland | 0131-556-8711 | http://www.stjohnscotland.org.uk/ | Yes | Yes | Yes | |
| Europe | Wales | 029-2044-9600 | http://www.stjohnwales.org.uk/ | Yes | Yes | Yes | Yes |
| Europe | Cyprus | 357-2266-3950 | https://www.stjohn.org.cy/ | Yes | Yes | Yes | |
| Europe | Gibraltar | 350-200-77390 | http://www.stjohn.gi/ | Yes | Yes | Yes | Yes |
| Europe | Ireland | 01-668-8077 | http://www.stjohn.ie/ | Yes | Yes | Yes | |
| Europe | Malta | 356-7924-5740 | http://www.stjohnmalta.org/ | Yes | Yes | Yes | |
| Oceana | Australia | 1300-360-455 | http://stjohn.org.au/ | Yes | Yes | Yes | Yes |
| Oceana | New Zealand | 64-9526-0528 | http://www.stjohn.org.nz/ | Yes | Yes | Yes | Yes |