The name Marni originates from several languages, including Hebrew, meaning "rejoice", and Latin as a variant of "Marina", meaning "of the sea". It also has derivations from Gaelic and Swahili. "Marni" and "Marnie" are the two most common spellings of the female first name, ranking 2446 and 1498, respectively, out of 4275 for females of all ages in the 1990 U.S. Census.
Due to its many derivations, a number of alternate spellings and related variant names exist, including:
Marny, a Scandinavian variant of Marina
Famous bearers of this name include:As a given name: