Over the past 110 years, 14 650 girls and 5 boys have been named Kaitlynn. The name Kaitlynn ranks 1053th in the United States among the most common names for girls. For the first time more than ten times newborns were named Kaitlynn in 1986. The peak of popularity of the name Kaitlynn came in the 1990s and 2000s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.