Shirline is of American origin, derived from a combination of 'Sher' and 'Line'. It has gained popularity as a unique feminine given name in recent years.
The name Shirline appears to have been quite popular among parents from the 1930s through the 1960s, with a total of 180 babies being named Shirline during this time period. However, it seems that its popularity fluctuated significantly over the years, with some years seeing as many as 11 births and others seeing none at all. The name's highest peak in popularity was in the mid-1930s to early 1940s, while its most recent occurrences were in the late 1960s.