Gantt
Likely a shortened or altered form of an older surname such as Gant, often linked to a nickname or occupational root.
The #3,891 most common surname in the United States (2010 Census) — about 1 in every 33,846 Americans shares it.
Etymology
Gantt is usually treated as an English surname, most likely an altered spelling of Gant. The earlier form may come from a nickname or from a medieval personal name or byname, but the exact root is not certain. In some cases, surnames of this type were also influenced by spelling variation and local pronunciation over time.
History
The surname is most common in English-speaking countries, especially the United States, where it appears in several spelling forms. As with many short surnames, its modern shape may reflect later simplification or regional spelling habits rather than a single fixed medieval form. The name is also familiar in American history through the Gantt surname borne by several notable families.
Origin
Regions
Variant spellings
Fun fact
The doubled final consonant in Gantt is likely a later spelling choice, since many English surnames fluctuated in spelling before names became standardized.