Benjen is of Germanic origin, derived from the Old High German word 'Bennō', which means "son of Benno". It is a variant form of Benjamin, and thus shares its biblical roots. The name was popular among Germanic tribes such as the Saxons and Anglo-Saxons. In England, it was introduced by way of the Normans after the Norman Conquest in 1066, but it was not widely used until the 19th century when it began to gain popularity alongside other names like Benson and Bennet. Today, Benjen is still a rare name, but it has been occasionally used in recent years, perhaps as an alternative spelling of Benjamin or Bennett.
The name Benjen has seen a fluctuating popularity in recent years, with a notable spike in 2021, and appears to have dipped slightly in 2022 as no data is available for that year.