March \m(a)-rch, mar-ch\ as a boy's name is of Old French origin, and the meaning of March is "borderland, frontier". In Italy, "le marche" was a territory between two ancient kingdoms. In England, the Marches of western England border Wales. "March" as in "walk" derives from a slightly different root. The name may also be used to signify the month of birth. Actor Frederic March.
For more information, see also the related name Marcus.