Surname Seaila (Seaila 
, Segl 
) , in the world, is a rare cognomen. The cognomen Seaila is habitual in Austria, where it is a rare surname, Germany, and Croatia, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Germany, Austria, and the United States. Much less frequently, Seaila is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Seaila | India, United States, South Africa |
| Segl | Germany, Austria, Mexico, United States, India |