Ennis \e(n)-nis\ as a boy's name (also used as girl's name Ennis), is of Celtic origin, and the meaning of Ennis is "one choice". Variant of the Scottish Gaelic name Angus.

For more information, see also related names Eneas and Innis.

Baby names that sound like Ennis are Enneis and Ennes. Other similar baby names are Enneiss, Enneas, Enne, Denis, Dennis, Enno, Ellis, Elis, Elois, Enos, Enzio, Inniss, Innes, Tannis and Yannis.