Family name Gantt (Gantt 
, جانت 
, Гантт 
) , globally, is quite a common surname. The cognomen Gantt is characteristic of Israel, where it is quite a rare surname, the United States, and Algeria, where it is a rare surname. Very seldom, Gantt is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gantt | United Kingdom, United States, Canada, Israel, New Zealand |
| جانت | Iran, Algeria, Libya, Egypt, Iraq |
| Гантт | Ukraine |
| edward gantt American chaplain, US (b. 1746) |
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| samuel n. gantt American politician, US (b. 1800) |
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henry laurence gantt American engineer (1861-1919), US (b. 1861) |
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| henry gantt Confederate officer (b. 1831) |
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bob gantt American basketball player, US (b. 1922) |
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| l. rosa hirichman gantt American suffragist (1875-1935), US (b. 1875) |
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david gantt American politician, US (b. 1941) |
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| w horsley gantt American physiologist and psychologist, US (b. 1892) |
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| w. horsely gantt (1893-1980) (b. 1893) |
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| james britton gantt American artist (b. 1909) |
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| lena mae gantt American community organizer, US (b. 1918) |
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mark gantt American actor, US (b. 1968) |
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| fred gantt American basketball player, US (b. 1922) |
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mrs. p.j. gantt Women's Democratic League of the State of New York |
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| elisabeth gantt American cellular and molecular plant scientist, US (b. 1934) |
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