Deb Stark is currently the Deputy Minister of the Ministry of Agriculture and Food and the Ministry of Rural Affairs.

Deputy Stark was the OPS 2012 Amethyst Fellow at the Queen's University School of Policy Studies. She has held a number of senior leadership positions within the Ontario Public Service, including Assistant Deputy Minister in the Ministry of the Environment, leading their Environmental Science and Standards Division.

Deputy Stark first joined the Ministry of Agriculture, Food and Rural Affairs as a veterinarian for dairy and beef. She has held several positions within the ministry since that time, including Assistant Deputy Minister of the Food Safety and Environment Division and Chief Veterinarian for Ontario.

Deputy Stark holds a Doctor of Veterinary Medicine degree from the Ontario Veterinary College at the University of Guelph and an MBA from Wilfrid Laurier University.