McMaster University has a number of locations in Ontario that are not on the main campus. In some cases, there are associations with other organizations.

David Braley Health Sciences Center
100 Main Street West, Hamilton, ON L8P 1H6

David Braley Research Institute
237 Barton St E, Hamilton, ON L8L 2X2

Hamilton General Hospital
237 Barton St. E. Hamilton, ON L8L 2X2

Juravinski Hopsital and Cancer Center
699 Concession St., Hamilton ON L8V 5C2

Michael G. DeGroote School of Medicine
​Niagara Regional Campus
Cairns Family Health and Bioscience Research Complex
1812 Sir Isaac Brock Way, St. Catharines, ON L2S 3A1

Michael G. DeGroote School of Medicine
Waterloo Regional Campus
10-B Victoria Street South, 3rd Floor, Kitchener, ON, N2G 1C3

Niagara Regional Campus
Cairns Family Health and Bioscience Research Complex
1812 Sir Isaac Brock Way, St. Catharines, ON L2S 3A1

Ron Joyce Children's Health Center
325 Wellington Avenue North, Hamilton, ON L8L 0A4

St. Peter's Hospital
88 Maplewood Avenue, Hamilton, ON L8M 1W9

St Joseph's Hospital, Charlton Campus
50 Charlton Avenue East, Hamilton, ON L8N 4A6

St. Joseph's Healthcare Hamilton, West 5th Campus
100 West 5th Streeet, Hamilton ON L9C 0E3

Stonechurch Family Health Centre
1475 Upper Ottawa, Hamilton, ON

Waterloo Regional Campus
10-B Victoria Street South, Kitchener, ON N2G 1C3