The Idra is a Kabbalistic work included in printings of the Zohar.
Idra or IDRA may also refer to:
People IdrA (Greg "Idra" Field), StarCraft player Idra Novey, American novelist, poet, and translator
Other uses Insanity Defense Reform Act, a US law International Design Resource Awards Competition, for sustainable product design IDRA-21, a drug Idra Group, manufacturer of the Giga Press