Ominami, Ōminami or Oominami (written: 大南) is a Japanese surname. Notable people with the surname include:
Carlos Ominami (born 1950), Chilean economist and politician Marco Enríquez-Ominami (born 1973), Chilean politician and adopted son of the former , Japanese long-distance runner , Japanese long-distance runner , Japanese footballer
See also Marco Enríquez-Ominami, Chilean filmmaker and politician