Joseph Larmor (1857–1942) was a British physicist and mathematician.

Larmor may also refer to:

• Larmor (crater), on the Moon
• LARMOR neutron microscope, a planned microscope based on neutron scattering
• Larmor precession and Larmor frequency, the precession of the magnetic moment
• Larmor formula, to calculate the total power radiated by a non relativistic point charge as it accelerates or decelerates
• Larmor radius, the radius of the circular motion of a charged particle in the presence of a uniform magnetic field
• Larmor's theorem, by Joseph Larmor
• Maria Lamor, Spanish actress

• Lamour (disambiguation)

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