Eiulf Peter "Buster" Nupen (1 January 1902 – 29 January 1977) was a cricketer who played in 17 Test matches for South Africa between 1921–22 and 1935–36. He was born in Norway, lost an eye in a childhood accident and was shot through both knees when he was 20. He was educated at King Edward VII School (Johannesburg) and practised as an attorney in Johannesburg for 45 years.