Princess Aspasia Manos (4 September 1896-7 August 1972) was the wife of Alexander I, King of the Hellenes.

She was born in Athens, the daughter of Colonel Petros Manos and his wife, Maria Argyropoulos. Her family descended, in part, from Phanariote Greeks living in Constantinople (now Istanbul).

On 4 November 1919, at Tatoi, she married King Alexander. Their marriage caused a scandal, and the couple was forced to temporarily flee to Paris, until the crisis was resolved and the wedding was declared legal. She never took the title of Queen, but did use the title "Princess of Greece and Denmark", particularly after the death of her husband.

Aspasia and Alexander were the parents of one child, Princess Alexandra of Greece and Denmark, who was born after Alexander's death at Tatoi (her father having died of sepsis following a monkey bite). Alexandra would later marry Peter II, King of Yugoslavia.

Aspasia Manos and her daughter were the only members of the Glücksburg dynasty, the Greek Royal House, to be of recent Greek descent. Like most European royal families, the Glücksburg family had a very mixed ethnic origin (including some Greek blood dating back to medieval times).

She died in Venice in Italy and was initially interred at the cemetery of San Michele island near Venice. Her remains were later transferred to the royal cemetery Plot in the park of Tatoi near Dekéleia (23 km north of Athens.)