Broad valley or bright town
Brayten is a modern American invention, likely a creative spelling of Braden or a blend of Bray and the popular 'ten' suffix. It is often associated with the Old English elements 'brad' meaning broad and 'denu' meaning valley, or 'beorht' meaning bright.
Less common today
Brayten isn't in the latest US Top 1000. It last peaked at #5,213 in 2008.
US births per 5-year period, 1990βpresent (SSA data).