Eswin is a unique and distinctive given name of unknown origin, though it shares similarities with names such as Esben, which is of Scandinavian descent. The name Eswin consists of two parts: 'Es', which could be derived from the Old Norse name Æsa, meaning 'god', and 'win', possibly from the Old English word 'wine', referring to a friend or companion. This suggests that Eswin may have been intended as a name meaning 'friend of the gods' or 'companion to the divine'. However, due to its rarity, there is no widely accepted etymology for Eswin. It is often spelled alternatively as Eyswin or Eyezwine. The name gained some popularity in the 20th century but remains relatively uncommon today.
The name Eswin has seen fluctuating popularity over the past three decades, with the most notable peaks occurring between 2004 and 2009, particularly in 2006 (11 births) and 2009 (12 births). The name's usage seems to have stabilized more recently, with consistent numbers of births from 2016 onwards.