Over the past 110 years, 23 boys and 224 374 girls have been named Leah. The name Leah ranks 8556th in the United States among the most common names for boys. For the first time more than ten times newborns were named Leah in 1989. The peak of popularity of the name Leah came in the 1980s and 2000s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.