From the town of Brixton; stone of Beorhtsige
Brixtyn is a modern creative spelling of Brixton, a district in London. The name originally derives from the Old English 'Beorhtsige's stone', referring to a boundary marker or meeting place. It has gained traction as a contemporary surname-style name with a trendy 'y' substitution.
US births per 5-year period, 1990–present (SSA data).