Others
- Louis Congo (c. 1725), emancipated slave appointed public executioner of Louisiana
- Louis V. Gerstner, Jr. (born 1942), former Chairman and CEO of IBM corporation
- Louis Jolliet (1645–1700), French explorer, one of the first Europeans to reach the northern part of the Mississippi River
- Louis (parrot), Famous parrot from Victoria, British Columbia, well-provided for by owner's will after her death in 1949
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