Aleksander Donner (Ukrainian: Олександр Доннер, first name also transliterated as Oleksandar, Oleksander or Oleksandr); 1948 – 24 August 2013) was a Ukrainian handball coach, best known for his spell at Portuguese team ABC Braga (1991–2004). Donner is considered the most accomplished coach in Portuguese handball and is credited with the success of growing the nation's handball in the 1990s.