| Agency Name: | Agricultural Research Institute of Ontario |
| Jurisdiction: | Government of Ontario |
| Headquarters: | 1 Stone Road West, Guelph, Ontario, Canada |
| Coordinates: | 43.5252°N -80.2287°W |
| Employees: | 15 |
| Minister1 Name: | Lisa Thompson |
| Minister1 Pfo: | Minister of Agriculture, Food and Rural Affairs |
| Chief1 Name: | Karen Chan |
| Chief1 Position: | Director of Research |
| Agency Type: | Crown corporation |
| Parent Department: | Ontario Ministry of Agriculture, Food and Rural Affairs |
The Agricultural Research Institute of Ontario is a provincial Crown corporation, established in 1962 by the ARIO Act, to "advocate areas of research for the betterment of agriculture, veterinary medicine and consumer studies" and "increase the production efficiency and marketing of agricultural products by stimulating interest in research".[1]
It is located adjacent to the University of Guelph campus.