Other
- Bertrand (electoral district), a provincial electoral district in Quebec
- Bertrand (1981–1994 electoral district), an earlier otherwise unrelated provincial electoral district in Quebec of the same name
- Bertrand (programming language)
- Bertrand (steamboat), an 1865 steamboat that sank in the Missouri River
- Bertrand competition, an economic model where firms compete in price
- Bertrand's Theorem, a theorem in classical mechanics stating only two types of central force potentials produce stable, closed orbits
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