| Ivor Thord-Gray | 
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| Thord-Gray in 1914 | 
| Born | Thord Ivar Hallström (1878-04-17)17 April 1878
 
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| Died | 18 August 1964(1964-08-18) (aged 86) | 
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| Nationality | Swedish, American | 
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| Occupations | SailorSoldierEthnologistLinguistInvestorWriter
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| Years active | 1897–1935 | 
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| Notable work | Gringo RebelFrån Mexicos forntid : bland tempelruiner och gudabilder (From Mexico's ancient times: among temple ruins and idols)Tarahumara-English, English-Tarahumara dictionary and an introduction to Tarahumara grammar
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| Spouse | Josephine Toerge-Schaefer | 
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| Children | 2 | 
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Ivor Thord-Gray (born Thord Ivar Hallström) (April 17, 1878 – August 18, 1964) was a Swedish-born adventurer, sailor, prison guard, soldier, government official, police officer, rubber plantation owner, ethnologist, linguist, investor, and author. He participated in thirteen wars spanning the continents of Africa, Asia, North America, and Europe.