Eian is of Scottish origin, derived from the Gaelic name "Eachann". It is composed of two elements: "each", meaning horse, and "an", which means little. Therefore, Eian translates to "little horse". This name was popular among the Scots during the Middle Ages but has since become less common. Today, it is considered a unique and vintage choice for a boy's name.
The name Eian experienced a notable rise in popularity from the late 1980s onwards, with a significant increase in births per year starting around 1995. The peak of popularity was reached in 2005 and 2007, with 103 and 102 births respectively. However, since then, the name's popularity has steadily declined, reaching an all-time low in 2023 with only 29 births recorded. Overall, there have been a total of 2039 births named Eian from 1977 to 2023.