Baldvinsson is an Icelandic patronymic, literally meaning "son of Baldvin". Notable people with the name include:
Baldvin Baldvinsson (born 1943), Icelandic footballer Guðjón Baldvinsson (born 1986), Icelandic footballer Marel Baldvinsson (born 1980), Icelandic footballer Rógvi Baldvinsson (born 1989), Faroese footballer