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- Hamish Gray, Baron Gray of Contin
- Hanna Holborn Gray
- Harold Gray, American cartoonist
- Harry Gray (business) (1919–2009), American business executive
- Harry B. Gray (born 1935), American chemist
- Hawthorne C. Gray (1889-1927), American balloonist
- Henry Gray (1827–1861), anatomist
- Henry Gray (politician), American Civil War general and Confederate congressman
- Henry Peters Gray
- Herb Gray, politician
- Herb Gray (football player), football player
- Horace Gray
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