Sharalyn is of American origin, deriving from two elements: 'Shara' meaning 'song', and 'lyn', an anglicized form of the Welsh 'Llyn'. It was created during the mid-20th century, becoming popular in the 1960s.
The name Sharalyn had its peak popularity between the late 1940s and early 1960s with consistently high birth numbers annually during this period. After 1964, there was a significant decline in its popularity, with fewer than 10 births per year recorded from then onwards until the most recent data point available in 1993. Overall, the name Sharalyn has been given to 386 newborns across these years.