In the world, Seaby (Seaby 
) is an extremely rare gender-neutral first name. Predominantly, Seaby is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Seaby | United Kingdom, Australia, United States, India, Canada |
| allen w. seaby Ornithological painter and printmaker (1867-1953), GB (b. 1867) |
|