Namesakes
Kekilia of Greece and Denmark
(a.k.a. Cecilie) (f) 1911-1937 
Other Royalty 1911-1931 Denmark; Greece (princess)
Cecilie of Mecklenburg-Schwerin
(f) 1886-1954
Other Royalty 1905-1918 German Empire; Prussia (princess consort)
Cecilie Thomsen
(f) 1974-
Notable Actors and Entertainers (actor)
Cecilie of Prussia
(f) 1917-1975
Other Royalty 1917-1975 Prussia (princess)