Haag, who most recently was the company’s senior vice president of department operations, is also set to become chief executive officer after one year, when current CEO Steven Goddard officially steps down.
The company said the succession plan was the result of a two-year process that resulted in three final candidates being evaluated by the board.
“We firmly believe that Grant is the right choice to lead the company into the future,” said Goddard.
Haag is a 34-year veteran of WinCo Foods and has served in several positions, including produce department manager, NW Division/Oregon produce supervisor, vice president of produce operations, and district manager, Northwest division.
In September 2015, Haag was appointed senior vice president of department operations for WinCo Foods. Haag also serves on the board of directors for the WinCo Foods Foundation.