布朗半岛是南极洲的半岛，位于维多利亚地，处于迪斯卡弗里火山以北，长19公里、宽7公里，由英国探险队发现，现时受南极条约体系管理。

Brown Peninsula (78°6′S 165°25′E / 78.100°S 165.417°E / -78.100; 165.417) is a nearly ice-free peninsula, 10 nautical miles (19 km) long and 4 nautical miles (7 km) wide, which rises above the Ross Ice Shelf northward of Mount Discovery, to which it is connected by a low isthmus. It was discovered by the British National Antarctic Expedition, 1901–04, which named it "Brown Island" because of its color and its island-like character. Since it is a peninsula, the name has been altered accordingly.