Grandparents day is an "unofficial" (fun only) holiday that seeks to celebrate the importance of Grandparents in the family.

Grandparent's Day is a secular holiday celebrated in the United States since 1978 and officially recognized in a number of countries on various days of the year, either as one holiday or sometimes as a separate Grandmothers Day and Grandfathers Day. Grandparent's Day in the United States is celebrated on the first Sunday after Labor Day.