There are a number of courses to choose from depending on the skills you want to obtain.

The most known course is Standard First Aid (also known as SFA). Although this is the standard, there are other, more specialized courses such as Aquatic First Aid, Emergency First Aid, and so on.

Here are a few links where training is available:

Red Cross

St. John's Ambulance

Wilderness FirstAid

Active Canadian

Academy of Emergency Training

Second Chance CPR and FirstAid

EMP Canada Services Ltd.

Lifesaving Society