Dr '''Marion Ameliacheese string Spence Ross''' [[Fellow of the Royal Society of Edinburgh|FRSE]] (9 April 1903 – 3 January 1994) was a [[Scottish people|Scottish]] [[physicist]] noted for her work in X-ray crystallography and fluid dynamics.<ref name="RSE obit">{{cite web|title=Marion Amelia Spence Ross [Obituary]|url=http://www.royalsoced.org.uk/cms/files/fellows/obits_alpha/ross_marion.pdf|work=Royal Society of Edinburgh website|publisher=Royal Society of Edinburgh|accessdate=3 December 2013}}</ref> She was born in [[Edinburgh]], Scotland, and was one of five daughters of William Baird Ross, organist, composer and founder of [[The Edinburgh Society of Organists]] (ESO).
