Strain can refer to:

• Strain (materials science), the deformation of materials caused by stress
• Strain (biology), a variant of a plant, virus or bacteria; or an inbred animal used for experimental purposes
• Strain (injury), a muscle injury
• Strain (music)
• Strain (chemistry), a chemical stress of a molecule
• Strain (manga)
• Isaac Strain, an American explorer
• Julie Strain, the "Queen of the B movies"

See also

• Strain 121, a microbe that can thrive at temperatures of 121°C
• The Ames strain, a strain of anthrax
• Strain theory, of which there are several
• Ring strain, another chemical concept
• Shear strain
• The Andromeda Strain is a science fiction book and movie adaptation
• Strained Tendon, a German band
• The Acacia Strain, an American band
• Lunar Strain, the 1994 music album by In Flames
• New Business Strain, a financial concept
• List of cannabis strains

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