Eustiss \e(u)-sti-ss, eus-tiss\ as a boy's name is a variant of Eustace (Greek), and the meaning of Eustiss is "good grapes; to stand".

The baby name Eustiss sounds like Eustis and Justis. Other similar baby names are Kostis, Esaias, Estes, Euodias, Eusebius, Eusevios, Eusebios, Eustatius, Eustasius, Eustashe, Gustus, Justice and Justus.