Ryann is a feminine spelling of Ryan, an Irish surname from Ó Riain that is usually explained as "little king" or "descendant of Rian". The extra n marks it as a girls' name the way Lynn and Ann do, and it fits the unisex style of Reagan and Ryleigh. Ryann stood at number 840 in 2000, peaked at number 697 in 2006, was still at number 718 in 2019 and has since dropped to number 1288 in 2025.