Over the past 110 years, 436 116 girls and 235 boys have been named Megan. The name Megan ranks 72th in the United States among the most common names for girls. For the first time more than ten times newborns were named Megan in 1943. The peak of popularity of the name Megan 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.