Over the past 110 years, 23 boys and 15 113 girls have been named Ainsley. The name Ainsley ranks 8593th in the United States among the most common names for boys. For the first time more than ten times newborns were named Ainsley in 1987. The peak of popularity of the name Ainsley came in the 1980s and 1990s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.