The International Day of Families is observed on the 15th of May every year. In 1993, the General Assembly of United Nations decided that 15 May of every year should be observed as The International Day of Families.
This day provides an opportunity to promote awareness of issues relating to families and to increase the knowledge of the social, economic and demographic processes affecting families. This year (2018), the theme for the event is ‘Families and inclusive societies’.
Source- United Nations