巴尔顿半岛是南极洲的半岛，位于南设得兰群岛的乔治王岛西南部，处于马里安湾和波特湾之间，现时由南极条约体系管理。

Barton Peninsula is a small peninsula separating Marian Cove and Potter Cove at the southwest end of King George Island, in the South Shetland Islands of Antarctica. It was named by the UK Antarctic Place-Names Committee in 1963 for Colin Barton, Falkland Islands Dependencies Survey geologist who worked in this part of King George Island, 1959-61.