Brynnan \b-rynnan, br(yn)-nan\ as a girl's name is a variant of Brianna (Irish, Gaelic, Celtic) and Bryn (Welsh), and the meaning of Brynnan is "high, noble, exalted; hill, mount".

The baby name Brynnan sounds like Brennan, Branwen, Brenyn, Briannon, Bronwyn, Bronwin and Bronwen. Other similar baby names are Brynna, Bryna, Brynda, Brenna, Brynne, Brinna, Brennah, Bryanna, Bryann, Bryana, Brynn and Bryonna.