Over the past 110 years, 5 boys and 25 351 girls have been named Delia. The name Delia ranks 13280th in the United States among the most common names for boys. For the first time more than ten times newborns were named Delia in 1935. The peak of popularity of the name Delia came in the 1930s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.