Constant \c(o)-nsta-nt, con(s)-tant\ as a boy's name is of Latin origin, and the meaning of Constant is "steadfast". Medieval form of Constans. The name was seldom used in the Middle Ages, until it was taken up by Christians in the 17th century, partly due to its reference to determination in following Saint Peter's exhortations to be sober, vigilant, and steadfast in the faith.

For more information, see also the related name Constantine.

Baby names that sound like Constant are Constanz and Konstant. Other similar baby names are Konstanz, Constantin and Konstanty.