Over the past 110 years, 119 291 boys and 28 girls have been named Glen. The name Glen ranks 253th in the United States among the most common names for boys. For the first time more than ten times newborns were named Glen in 1910. The peak of popularity of the name Glen came in the 1920s and 1930s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.