Around the globe, Grantly (Grantly 
) is a very rare masculine first name. The given name Grantly is characteristic of Australia, where it is a very rare male name, and the United States, where it is an extremely rare boy's name. Much less frequently, Grantly is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Grantly | United Kingdom, Australia, South Africa, Germany, United States |
| grantly dick-read British obstetrician, GB (b. 1890) |
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| grantly sebastian lake (1914–1991) Catholic priest and naval chaplain, AU (b. 1914) |
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Bain, Paxton, Larson, Walker, Antoine, Charles, Colaire, Butters, Roberts, Galland, Jackson, Edwards, Marshall, Kirkwood, Ricketts, Griffith, Bierer, Bodine, Benton, Acuzar, Leon, Lutz, Valo, Scott, Aplin, Blake, Payne, Hamilton, Lynch, Elder, Heyns, Mailes, Sagris, Steele, Skeete, Skeets, Neely, and Franklin