Marlowfjellet is a mountain in Nathorst Land at Spitsbergen, Svalbard. It has three peaks of 1,052, 1,016 and 1,022, m.a.s.l., respectively, and extends over a length of about six kilometers. The mountain is surrounded by the glaciers of Sysselmannbreen and Steenstrupbreen. It is named after Norwegian mining engineer and military officer Wolmer Tycho Marlow.