Shirlyn is of American origin, derived from the English word 'shy'. It is often used as a feminine given name, though it can also be considered unisex due to its pronunciation and sound. The name Shirlyn typically consists of four syllables: Shi-rlynn. There are no known variations or nicknames for this name, as it stands alone in its uniqueness.
"Shirlyn saw its peak popularity during the late 1940s to early 1950s with over 15 births per year. However, it became quite uncommon after the 1960s, with fewer than 10 births annually from 1973 onwards."