The host nation always marches out last at the Olympics opening ceremony.
Greece always leads the ceremony, the host country is always last. Since the Olympics began in Greece they are given the honor of being the first to walk during the opening ceremonies.
The ancient Olympic Games originated from Greece; also the first edition of the modern Olympic Games was held in Athens - 1896.
The host country.
The country that is hosting the Olympics is always the one that marches last.
The Host Country.