Father's Day
Father's Day, is observed on the feast day of Fathers. It is celebrated as a public international day, like in many other countries including the U.S., on the third Sunday of June.
In Greece, like in other European countries, this day is named (Fête des Peres/Feast of Fathers)
Parents' Day
The United Nations proclaimed June 1 to be the Global Day of Parents "to appreciate all parents in all parts of the world for their selfless commitment to children and their lifelong sacrifice towards nurturing this relationship". It is the same day as International Children's Day.