Unitary may refer to:

• In Christian doctrine, unitarianism is the belief in a "unitary God" as opposed to the concept of the Trinity.
  • Unitarian Universalism (sometimes called "Unitarianism") is an interfaith church) which draws its name from an interfaith concept of "unitary God" (as opposed to an exclusively Christian concept).
• Unitary state and Unitary authority - types of political regions.
• Unitary enterprise
• Promoters of Unitary Executive theory^* call themselves "unitarians"
• Unitary System

• Unitary matrix
• Unitary operator
• Unitary transformation
• Unitary group
• Unitary representation
• Note:Some authors use the word "unitary" synonymously with unital, which for a module implies the underlying ring has multiplicative identity which acts as the identity on it, and for an algebra implies that the algebra itself has a mutliplicative identity.

Unitario