The Royal Family Order of Saints Olga and Sophia (Greek: Βασιλικόν Οἰκογενειακόν Τάγμα Ἁγίων Ὂλγας καὶ Σοφίας, romanized: Vasilikon Oikogeneiakon Tagma Agion Olgas kai Sofias) is an order of the Greek royal family.

Reserved for women, it was the third highest honour of the modern Greek state and the Crown after the Order of the Redeemer and the male-only Order of Saints George and Constantine.

It was instituted in January 1936, by King George II in the memory of his grandmother (Queen Olga) and his mother (Queen Sophia).

The Greek state stopped awarding the order in 1973, following the abolishment of the monarchy.

Since the abolition of the monarchy, the order is awarded by the head of the former Greek royal family.