| OAC International Travel Grants | University of Guelph | Ontario Agricultural College | | |
| Oil Sands Reclamation Scholarship | University of Alberta | Faculty of Agricultural, Life and Environmental Sciences | | Land Reclamation |
| Old Sun Entrance Scholarship | McGill University | Faculty of Agricultural and Environmental Sciences | School of Dietetics and Human Nutrition, Environmental Sciences | |
| Old Sun Scholarship | McGill University | Faculty of Agricultural and Environmental Sciences | | Nutrition, Dietetics, Agriculture, Environmental Sciences |
| Olive and Jim Blackburn Scholarship | University of Saskatchewan | College of Agriculture and Bioresources | | |
| Oliver Symes Memorial Scholarship | University of Saskatchewan | College of Engineering | Department of Agricultural and Bioresource Engineering | |
| Ontario Agri Business Association Degree Bursaries | University of Guelph | Ontario Agricultural College | | Bachelor of Commerce: Agricultural Business, Bachelor of Science in Agriculture: Food Agriculture and Resource Economics, Animal Science, Agronomy |
| Ontario Agri Business Association Scholarships | University of Guelph | | | Bachelor of Science: Agriculture |
| Ontario Agricultural FS Cooperatives Scholarship | University of Guelph | | | Bachelor of SCIENCE: Agriculture, Bachelor of Commerce: Agricultural Business |
| Ontario Association of Landscape Architects Scholarship (MLA) | University of Guelph | Ontario Agricultural College | | Master of Landscape Architecture |
| Ontario Cattlemen's Association Degree Bursary | University of Guelph | | | Bachelor of Science: Agriculture, Bachelor of Commerce: Agricultural Business, Bachelor of Science: Animal Biology, Bachelor of Science: Food Science |
| Ontario Dairy Council Prize | University of Guelph | Ontario Agricultural College | Department of Food Science | |
| Ontario Federation of Agriculture Bursaries | University of Guelph | Ontario Agricultural College | | Bachelor of Science: Agriculture, Bachelor of Commerce, Bachelor of Science, Bachelor of Science: (Env.) |
| Ontario Food Processors Association Scholarship | University of Guelph | Ontario Agricultural College | Department of Food Science | Food Science |
| Ontario Food Protection Association Graduate Bursary in Food Safety (Food Safety and Quality Assurance) | University of Guelph | Ontario Agricultural College | | Master of Science: Food Safety and Quality Assurance Program |
| Ontario Food Protection Association Scholarship | University of Guelph | Ontario Agricultural College | Department of Food Science | Food Science |
| Ontario Food Protection Association Scholarship in Food Safety & Quality Assurance | University of Guelph | Ontario Agricultural College | | Master of Science: Food Safety & Quality Assurance Program |
| Ontario Genomics Institute (OGI) Summer Fellowship | Ontario Universities | | | Health and Medicine, Environment and Forestry, Agriculture |
| Ontario Grape Growers Bursary | University of Guelph | Ontario Agricultural College | | |
| Ontario Horticultural Association Scholarship | University of Guelph | | | Bachelor of Science: Agriculture |
