Last name Hillaire (Hillaire 
) , in the world, is quite a rare family name. The cognomen Hillaire is characteristic of Grenada, where it is quite a common surname, Trinidad and Tobago, where it is quite a rare surname, and France. In absolute terms, it most frequently occurs in France, the United States, and Trinidad and Tobago. Much less frequently, Hillaire is the forename as well as the last name.
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| Hillaire | Democratic Republic of the Congo, Trinidad and Tobago, France, Cameroon, United States |
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norbert hillaire French essayist and art critic, FR (b. 1949) |
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| joe hillaire (b. 1894) |
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| marcel hillaire German-born american character actor, DE (b. 1908) |
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| claude hillaire-marcel Canadian geologist, CA (b. 1944) |
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| bernard hillaire French journalist and politician |
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| hillaire frances de courcy wheeler Peerage person ID=708483 |
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| hillaire james lamont Peerage person ID=573430 |
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| keith d hillaire researcher |
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| aquawasi st. hillaire college basketball player (2004–2005) Albany (NY) |
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| garron hillaire researcher ORCID id 0000-0001-8176-7737 |
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| kathon st. hillaire Trinidadian footballing forward, TT (b. 1997) |
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| dwight st. hillaire Trinidad and Tobago athlete (b. 1997) |
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