Over the past 110 years, 1 983 boys and 146 186 girls have been named Kelsey. The name Kelsey ranks 1891th in the United States among the most common names for boys. For the first time more than ten times newborns were named Kelsey in 1968. The peak of popularity of the name Kelsey 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.