Fionnbarr is a variant of Barry (English and Irish) in the Irish language.
Fionnbarr is also a variant of Finbar (Irish and English) in the Irish language.
Fionnbarr is not regularly used as a baby name for boys. It is not listed in the top 1000 names.
Baby names that sound like Fionnbarr include Finnobar, Finnobarr, Finobar, Finobarr, Fionbharr (Irish), Fionnbar, Fionnbharr (Irish), Finbar (Irish and English), Finbarr (Irish), Finnbar (Irish), Finnbarr, Fynbar, Fynbarr, Fynnbar, and Fynnbarr.