How many Shirley are in the world?

Estimating the exact number of people named Shirley in the world is challenging, as it varies by country and over time. While the name was quite popular in the early to mid-20th century, its usage has declined in recent years. In the United States, for example, there are likely tens of thousands of individuals with the name. However, for a precise number, one would need access to comprehensive global name databases or census records.