The name Dionicio reached its peak in 1976, with 33 registrations (ranked #1621). It had been quietly building for over half a century before that, first appearing in records in 1882. Since the peak, the name has eased to well outside the top 1,000 (around #6654) today, averaging about 13 new babies per year. Dionicio's usage has held roughly steady recently. Across all years on record, approximately 2,081 American babies have carried this name.