Nathaly is a Spanish-influenced spelling of Nathalie and Natalie, which come from the Latin natalis dies, "birthday", and originally meant "born on Christmas Day". The spelling with -y is popular with Latino families in the United States. Nathaly entered the top 1000 in 2004, peaked at number 786 in 2014, slipped out in 2017 and ranks 1216 in 2025.