Rahasyam or rahasiyam ( in Sanskrit) may refer to:
Chidambara Rahasiyam (disambiguation), a Hindu myth and related media Rahasyam (1967 film), a 1967 Indian Telugu-language film Rahasyam (1969 film), a 1969 Indian Malayalam-language film
See also Raaz (disambiguation) Rahasya, 2015 Indian film Ragasya, an Indian actress