Brynna \b-rynna, br(yn)-na\ as a girl's name is a variant of Brenna (Gaelic), Brianna (Irish, Gaelic, Celtic), Brina (Slavic) and Bryn (Welsh), and the meaning of Brynna is "little drop of water; raven or black-haired; high, noble, exalted; defender; hill, mount".

The baby name Brynna sounds like Bryna, Brynne, Brinna, Bryanna, Bryana, Brynn and Bryonna. Other similar baby names are Brynda and Brynnan.