A superposition is a linear combination. It can also refer to:

• The superposition principle of linear differential equations (LDEs), that a linear combination of solutions to an LDE is itself another solution
  • Superposition theorem for electric circuits
  • Quantum superposition, in quantum physics
• The Kolmogorov–Arnold superposition theorem, representing a multivariate function as a superposition of univariate functions
• Superposition calculus, used in logic for equational first-order reasoning

• Dalton's law

• Law of superposition in geology and archaeology

• Superposition or parallel voting, a mixture of two electoral systems that do not interact

• "Superposition", a song by Young the Giant from the 2018 album Mirror Master
• "Superposition", a song by Daniel Caesar from the 2019 album Case Study 01
• In music theory, "reaching over"

• Superimposition (disambiguation)
• Overlay (disambiguation)
• Overlap (disambiguation)