Mangelia elegantissima is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
Not to be confounded with Mangelia elegantissima <small>(Melvill & Standen, 1903)</small>, originally described as Cythara elegantissima and now a synonym of Paraclathurella gracilenta <small>(Reeve, 1843)</small>
This extinct marine species was found in Miocene strata of Myanmar