Great tide or from the sea
A modern American spelling variation of the Welsh name Dylan. While traditionally a masculine name meaning 'son of the sea,' this spelling is used almost exclusively for girls to give it a more contemporary, feminine feel.
Less common today
Dylynn isn't in the latest US Top 1000. It last peaked at #8,732 in 2016.
US births per 5-year period, 1990βpresent (SSA data).