Australian Grandparents Day
Australian Grandparents Day is held on October 25. Last Sunday of October. This event in the third decade of the month october is annual.
Grandmothers and Grandfathers Day in Ukraine on October 28 (Grandparents Day since 2018);
Grandchildren and grandparents Day in Russia on October 28 (a holiday for the whole family);
Girl Scouts Founder's Day on October 31 (United States);