Over the past 110 years, 150 boys and 30 599 girls have been named Hadley. The name Hadley ranks 5114th in the United States among the most common names for boys. For the first time more than ten times newborns were named Hadley in 1912. The peak of popularity of the name Hadley came in the 1910s and 1980s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.