Over the past 110 years, 32 056 girls have been named Katharine. The name Katharine ranks 686th in the United States among the most common names for girls. For the first time more than ten times newborns were named Katharine in 1910. The peak of popularity of the name Katharine came in the 1910s and 1980s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.