Oliwer is a Polish masculine given name form of Oliver. Notable people with the name include:
Oliwer Kaski (born 1995), Finnish ice hockey player Oliwer Magnusson (born 2000), Swedish freestyle skier Oliwer Stark (born 2006), Swedish footballer Oliwer Stedt, Swedish American football player Oliwer Wdowik (born 2002), Polish sprinter