Look up signature in Wiktionary, the free dictionary.

A signature is a mark used to confirm a person's identity or intent.

Signature may also refer to:

• Signature (charity), for deaf communication activities in the UK
• Signature, a clothing brand of Levi Strauss & Co.
• Signature (dance group) English Bhangra dance duo Suleman Mirza and Madhu Singh
• Signature (typography journal), a 20th-century British journal
• Signature (whisky), an Indian whisky brand
• Signature Books, a publisher of Mormon works
• Signature Digital Menus, a sign company
• Signature Flight Support, a British fixed-base operator
• Signatures Restaurant, former restaurant once owned by Washington lobbyist Jack Abramoff
• Signature School, a charter school in Evansville, Indiana
• Signature Team, a French motor racing team
• Signature Theatres, a movie theatre chain

• Signature block, text automatically appended at the bottom of electronic messages
• Electronic signature, a digital form of identity or intent validation
• File signature, data used to identify or verify the contents of a file
• Type signature, a definition of the inputs and outputs for a function or method
• XML Signature, a W3C recommendation

• Blind signature, a digital signature used to validate a disguised message
• Digital signature (or public-key digital signature), a method for authenticating informationq
• Key signature (cryptography), the result of applying a hash function on a key

• Signature (logic), a description of a set of function and relation symbols in mathematical logic
• Signature (permutation), a measure for the number of pairs a permutation maps out of order
• Signature (quadratic form), the number of positive, negative, or null terms of a quadratic form
• Signature (topology) of a 4k-dimensional compact oriented manifold
• Signature of a knot, in knot theory
• Prime signature, the multiset of exponents in the prime factorisation of a number
• Signature (matrix), the difference of the positive and negative eigenvalues of a matrix
• Metric signature of the metric tensor on a pseudo-Riemannian manifold

• Key signature, symbols placed on the staff designating notes to be played sharp or flat
• Signature (Moya Brennan album), 2006
• Signature (Joe album), 2009
• Signature (Patrice Rushen album), 1997
• Signature, a 2021 EP by the Filipino singer Morissette
• Signature Records, a mid-20th century United States-based record label
• Time signature, indicating how many beats are in each measure

• Acoustic signature, a combination of acoustic emissions
• Isotopic signature, a characteristic set of ratios of stable or unstable isotopes
• Metric signature, in physics, the form of a metric tensor: the sign of the diagonal components
  • Signature change, in relativity
• Radar cross-section
• Spectral signature, the specific combination of varying wavelengths reflected and absorbed which can uniquely identify an object

• Signature (bookbinding), a group of sheets folded in half
• Signature mark, a mark at the bottom of a group of sheets to assist in collation
• An alternative word for section (bookbinding)

• Signature Bridge, over the Yamuna river, Delhi, India
• Signature crime, a crime which exhibits characteristics unique to an offender's psychology
• Signature Place, a residential skyscraper in St. Petersburg, Florida

• Cignature, a South Korean girl group
• Signature file, any of several types of computer files
• Digital Signature Algorithm, a United States Federal Government standard
• ElGamal signature scheme
• Signature song, the song or songs a performer is most identified with
• Signatory (disambiguation)
• Doctrine of signatures, the notion that the appearance of plants is a function of their celestial influences
• Seal (East Asia), stamps used for identity or validation

This disambiguation page lists articles associated with the title Signature.
If an internal link led you here, you may wish to change the link to point directly to the intended article.