Home » Sargasso sea is named after an algae Sargassum which is a Algae MCQs Sargasso sea is named after an algae Sargassum which is a December 30, 2021 5 Views Q. Sargasso sea is named after an algae Sargassum which is a Green algaeBrown algaeRed algaeBlue green algae Answer: Brown algae