Over the past 110 years, 315 boys and 326 940 girls have been named Crystal. The name Crystal ranks 4008th in the United States among the most common names for boys. For the first time more than ten times newborns were named Crystal in 1976. The peak of popularity of the name Crystal came in the 1970s and 1980s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.