D65 may refer to: Illuminant D65, a commonly used standard illuminant defined by the International Commission on Illumination Greek destroyer Nearchos (D65) , a 1930 A-class destroyer of the Royal Navy , a 1946 Battle-class destroyer of the Royal Navy SPS Blas de Lezo (D65), a Spanish Navy ship , an Indian Navy ship the former designation for the Slovakian R1 expressway D 65 road (United Arab Emirates) (Al Manara Road), a road passing in Umm Suqeim