Einstein's theory of relativity, which refers to both special relativity and general relativity together

General relativity, Einstein's theory of gravitation

Special relativity, a theory of physics formulated by Albert Einstein

Relativism, the philosophical view that the meaning and value of human beliefs and behaviors have no absolute reference

Principle of relativity, used in Einstein's theories and derived from Galileo's principle

Numerical relativity, a subfield of computational physics that aims to establish numerical solutions to Einstein's field equations in general relativity

Galilean relativity, Galileo's conception of relativity

Relativity (M. C. Escher), a lithograph print by the Dutch artist M. C. Escher

Relativity (Voyager episode), 1999 fifth-season episode of Star Trek: Voyager

USS Relativity, the Wells class starship featured in that episode

Relativity Theory (The Outer Limits), 1988 The Outer Limits episode

Relativity Records, record label

Relativity (TV series), mid-1990s American drama series

Relativity (band), a band founded by Scottish folk musician Phil Cunningham and other members of Silly Wizard