Louis Gray may refer to:
- Louis Gray (footballer), Welsh footballer
- Louis Gray (producer), American film producer, of The Adventures of Champion
- Louis Herbert Gray (1875–1955), American orientalist
- Louis Harold Gray (1905–1965), British radiation physicist after whom the SI unit, the Gray, was named
- Lou Gray, character in Along the Great Divide
This disambiguation page lists articles about people with the same name.
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