For those completing a Bachelor of Science in Physics and seeking graduate studies in Canada, several universities are highlighted for their strong programs in theoretical physics, particularly in high-energy physics (HEP) and quantum gravity (QG). The University of British Columbia (UBC), University of Toronto (UofT), and the University of Waterloo (UW) are frequently mentioned as top choices. UW has a partnership with Guelph University, forming a graduate program that is closely linked to the Perimeter Institute, a notable research center in theoretical physics. Carleton University is also discussed, noted for its high-impact research, although its focus is primarily on particle and medical physics, which may not align with all interests. Additionally, universities operating TRIUMF, Canada's largest physics lab, are recommended, including UBC, University of Alberta, Simon Fraser University, Carleton University, and University of Victoria. These institutions are recognized for their contributions to advanced physics research and collaboration opportunities.