Son of Brice or son of the speckled one
A modern creative spelling of Bryson, which originated as an English patronymic surname meaning 'son of Brice'. The root name Brice is of Celtic origin, likely referring to someone with spotted or freckled skin.
Less common today
Brisyn isn't in the latest US Top 1000. It last peaked at #6,650 in 2017.
US births per 5-year period, 1990βpresent (SSA data).