Daysi is a distinctive girls' name in United States, ranking #3577 in 2009 with 45 recorded births. The name reached its all-time peak in 1996 with 63 births ranking #2160. Since 1996, the popularity has decreased by 28.6%. In 2009, approximately 1 in every 40,819 girls born was named Daysi. RISING Recent data shows the name is currently rising.