Son of the right hand
Banjamin is a rare variant of the Hebrew name Benjamin. It signifies a son born of the right hand, which historically symbolized favor, strength, and luck. While the 'e' spelling is standard, this 'a' variant is occasionally found in historical records or as a phonetic variation.
Less common today
Banjamin isn't in the latest US Top 1000. It last peaked at #4,218 in 1990.
US births per 5-year period, 1990βpresent (SSA data).