"Glen Grunwald's appointment ... will be remembered as a transformative moment for basketball in Canada," board chair John Mills said in a statement.
Grunwald ran the Raptors from 1997 to 2004, swinging the draft-night trade in 1998 that landed Vince Carter in Toronto. He was the Knicks' GM from 2011-13, and most recently worked as a consultant for the Memphis Grizzlies.
In addition to overseeing the women's and junior levels, Grunwald will work with senior men's team general manager Steve Nash in trying to end Canada's two-decade absence from men's Olympic basketball. Canada's senior men's team begins qualifying rounds for the 2019 FIBA World Cup on Thursday.