Tau (disambiguation)

Tau may refer to:

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  Tau (mathematics constant)

  Tau (τ) is the mathematical constant equal to 2π, commonly used to express angles and cycles.

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  Tau (Greek letter)

  Tau (Τ, τ) is the 19th letter of the Greek alphabet.

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  Tau protein (TAU)

  Tau is a protein associated with stabilizing microtubules in neurons and is implicated in neurodegenerative diseases such as Alzheimer’s.

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  Tau (unit of time in physics)

  τ is commonly used to denote a characteristic time constant (relaxation time) in physics and engineering.

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  Tau (programming language)

  Tau is the name of a programming language (used in some contexts and references).