Over the past 110 years, 5 boys and 14 650 girls have been named Kaitlynn. The name Kaitlynn ranks 13877th in the United States among the most common names for boys. For the first time more than ten times newborns were named Kaitlynn in 2004. The peak of popularity of the name Kaitlynn came in the 2000s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.