Passarella wins presidency of River Plate
Passarella, 56, will succeed Jose Maria Aguilar in the club's top job from next week after winning a tight election race involving five candidates.
"The people voted for change and showed this in the ballot," Passarella told Reuters.
"It was an historic vote because River's supporters showed their greatness once again with their commitment."
River, one of Argentina's biggest clubs, are currently in the midst of one of their worst slumps, languishing in the bottom half of the Apertura championship.