Marcello is a distinctive boys' name in United States, ranking #1106 in 2010 with 173 recorded births. The name reached its all-time peak in 2025 with 265 births ranking #900. Since 1996, the popularity has increased by 106.0%. In 2010, approximately 1 in every 11,089 boys born was named Marcello. RISING Recent data shows the name is currently rising.