史密斯半岛是南极洲的半岛，位于帕尔默地东岸，长46公里、宽18公里，该半岛在1940年12月被美国探险队发现，现时由南极条约体系管理。

Smith Peninsula (74°25′S 61°15′W / 74.417°S 61.250°W / -74.417; -61.250) is an ice-covered, "dog-legged" peninsula 46 kilometres (25 nmi) long and 19 kilometres (10 nmi) wide, extending in an easterly direction between Keller and Nantucket Inlets on the east coast of Palmer Land. The peninsula was photographed from the air in December 1940 by members of the United States Antarctic Service (USAS), and in 1947 by members of the Ronne Antarctic Research Expedition (RARE) under Ronne, who in conjunction with the Falkland Islands Dependencies Survey (FIDS) charted it from the ground. Named by Ronne for Walter Smith, ship's mate, navigator, and trail man with Ronne's expedition.