玛塔公主海岸（英语：Princess Martha Coast）也作玛莎公主海岸，位于东南极洲毛德皇后地，宽约200公里。1820年1月28日，俄国的法比安·戈特利布·冯·别林斯高晋和米克哈伊·拉扎列夫首次到达该海岸。1930年，挪威探险家亚尔马·里塞-拉森到达海岸的挪威角，后以挪威的太子妃玛塔公主命名这一海岸。海岸有南非共和国的萨纳站和德国的格·冯·诺伊迈尔站等科学考察站。

Princess Martha Coast is that portion of the coast of Queen Maud Land lying between 05° E and the terminus of Stancomb-Wills Glacier, at 20° W. The entire coastline is bounded by ice shelves with ice cliffs 20 to 35 m high.

Princess Martha Coast was the first portion of Antarctic mainland discovered by a human, Fabian von Bellingshausen and Mikhail Lazarev in 1820. The name "Crown Princess Martha Land" was originally applied by Capt. Hjalmar Riiser-Larsen to that section of the coast in the vicinity of Cape Norvegia which he discovered from the Norvegia and roughly charted from the air during February 1930.