Meaning A boy's name of Native American origin, it means "Cottonwood (Navajo)." Origin of T’iis Native American Popular Middle Names Pronunciation 🔊 Listen T’iis Similar Names Tooantuh Adahy Ahanu Ashishishe Askuwheteau Atagulkalu Bemossed Beshiltheeni Bidziil Bimisi Year by Year Popularity of T’iis