Subtle may refer to:
Subtle (band), a musical group consisting of members of the anticon. hip-hop collective Doctor Subtilis, John Duns Scotus Subtle body, an idea in mysticism, yoga, and tantra The Subtle Knife, a novel by Philip Pullman and the second book in the trilogy His Dark Materials Subtle, a character in The Alchemist (play) by Ben Jonson Subtle cardinal, in mathematics