Princess Catherine Olympia Caradja (born Ecaterina Olimpia Creţulescu; 28 January 1893 – 26 May 1993) was a Romanian aristocrat and philanthropist.

Born in Bucharest, she grew up in England and France, and lived in Romania from 1908 to 1952, when she escaped from the communist regime on a Danube boat.

An expatriate in the United States for 35 years, and a longtime resident of the Hill Country of Texas, she returned after the Romanian Revolution of 1989 to Bucharest, where she died a centenarian.

Princess Caradja is known for her humanitarian work in the interbellum, and especially for her efforts to ease the burden of captivity for over a thousand American and British airmen, taken prisoner during the bombing of Romania in World War II.

The princess was accidentally found in 1908 in a French convent by an aunt, who helped her escape, and brought her back to Romania, where the courts put her in custody of the Cantacuzino family.

[2] After the Armistice, Princess Caradja went back to Bucharest, and devoted herself to social work, most notably, at Saint Catherine's Crib, a complex of orphanages started by her mother, which housed more than 3,000 children.

[1][4] One of the pilots who survived crash landing, and escaped thanks to her efforts, was Richard W. Britt, who recounted the story in a book, many years later.

[2] She resided in the U.S. for more than 35 years, mainly in the town of Comfort (in the Hill Country of Texas), but also in Baltimore, Maryland and in Kansas City.

In mid-1991, she went back to her native country, taking up residence in the attic of her old orphanage, which is nowadays occupied by the City Hall of Bucharest.