Dame Sybil Thorndike 'yar wasan kwaikwayo ce ta Biritaniya wacce ta rayu daga 1882 zuwa 1976. Ta yi suna a fagen wasan kwaikwayo a Burtaniya da sauran kasashen duniya. Kalmar "dame" wani lakabi ne na girmamawa a Birtaniya, daidai da sunan namiji na "Sir," wanda ake ba wa mutanen da suka ba da gudummawa sosai a fagensu. A cikin shari'ar Dame Sybil Thorndike, an ba ta lakabi a cikin 1931 don karramawar da ta yi fice a wasan kwaikwayo. Don haka kalmar "Dame Sybil Thorndike" tana nufin 'yar wasan kwaikwayo ta Biritaniya marigayiya wacce aka karramata da sunan "dame" saboda gagarumar gudunmawar da ta bayar a fagen wasan kwaikwayo.