Hilar \hi-lar\ as a boy's name is a variant of Hilary (Latin), and the meaning of Hilar is "cheerful, happy".
The baby name Hilar sounds like Hilarie, Hillary, Hilario, Hilaire and Hiller. Other similar baby names are Tilar, Hadar, Haidar, Halvar, Hamar, Hilarid, Hill, Hillard, Homar, Kylar, Millar and Tylar.