National Daughters Day is celebrated on September 25 each year. In 2025, it falls on a Thursday. Some countries or cultures may celebrate it on the fourth Sunday in September or October 1. This day honors the special relationships between parents and daughters and celebrates the joy and love daughters bring into families. There is also a National Sons and Daughters Day on August 11, but National Daughters Day specifically is observed on September 25.

Additionally, in some countries like Germany and some CIS countries, Daughter's Day may be celebrated unofficially on April 25, focusing on the daughter's role in family and society.