Premier Greg Selinger says Scott Thomson will take over the provincial utility giant next month.
Thomson was recently an executive vice-president with FortisBC, the largest distributor of natural gas in British Columbia.
He has also held senior roles at Ernst & Young.
Selinger says Thomson has the experience needed to keep Manitoba Hydro profitable and transform it into a North American leader in renewable energy.
Former hydro CEO Bob Brennan stepped down in August after leading the Crown corporation for more than two decades.