Mariadel is a distinctive girls' name in United States, ranking #16395 in 2006 with 6 recorded births. The name reached its all-time peak in 2001 with 9 births ranking #10679. Since 1996, the popularity has decreased by 25.0%. In 2006, approximately 1 in every 316,845 girls born was named Mariadel. RISING Recent data shows the name is currently rising.