马尔湾是南极洲的海湾，位于南奥克尼群岛的劳里岛北岸，处于瓦拉维尔角和弗雷泽角之间，该海湾在1903年由苏格兰的探险队绘入地图。

Marr Bay (60°42′S 44°31′W / 60.700°S 44.517°W / -60.700; -44.517) is a bay lying between Cape Valavielle and Fraser Point along the north coast of Laurie Island, in the South Orkney Islands off Antarctica. It was mapped in 1903 by the Scottish National Antarctic Expedition under William Speirs Bruce, and was named for James W.S. Marr, a member of the Discovery Committee zoological staff, by personnel on the Discovery II following their survey of the South Orkney Islands in 1933.