Irish Baby Boy Names & Meanings from U

    UAITHNE: Irish name meaning "green."
    UALTAR: Irish form of French Waltier, meaning "ruler of the army."
    UILLEAG: Pet form of Irish Gaelic Uilliam, meaning "will-helmet."
    UILLIAM: Irish Gaelic form of German Wilhelm, meaning "will-helmet."
    UINSEANN: Irish Gaelic form of Latin Vincens, meaning "conquering."
    ULTÁN: Irish Gaelic name meaning "of Ulster."