梅尔兹半岛是南极洲的半岛，位于帕尔默地东岸，长15英里、宽25英里，在1940年12月由美国探险队发现，该半岛以澳大利亚海洋学家命名。

Merz Peninsula (72°15′S 61°5′W / 72.250°S 61.083°W / -72.250; -61.083) is an irregular, ice-covered peninsula, about 28 kilometres (15 nmi) long in an east–west direction and averaging 46 kilometres (25 nmi) wide, between Hilton Inlet and Violante Inlet on the east coast of Palmer Land, Antarctica. It was discovered and photographed from the air in December 1940 by the US Antarctic Service; during 1947 it was photographed from the air by the Ronne Antarctic Research Expedition under Finn Ronne, who in conjunction with the Falkland Islands Dependencies Survey (FIDS) charted it from the ground. The peninsula was named by the FIDS for Alfred Merz, a noted Austrian oceanographer and the original leader of the German expedition in the Meteor, 1925–26.