Emlyn is of Welsh origin, derived from the elements "em" meaning "enclosed" and "llynn" referring to a lake or pool. This unique name has been used historically in Wales but has gained international recognition due to its distinctiveness. The name Emlyn is often associated with notable figures such as the poet Emlyn Williams, who was born in Wales and became a prominent figure in British theater during the mid-20th century.
"The name Emlyn experienced a notable increase in popularity from the late 1980s onwards, with a significant spike in usage starting around the year 2000. Prior to this, there were typically fewer than ten births per year with the name Emlyn, but post-2000, the number of annual births with this name consistently exceeded ten, peaking at 37 in 2018 and 25 in both 2010 and 2020. Overall, between 1954 and 2023, there were a total of 453 births registered with the name Emlyn."