Surname Reggan (Reggan 
) , in the world, is a very rare cognomen. The family name Reggan is characteristic of Algeria, where it is a rare surname, Nicaragua, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Reggan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Reggan | Philippines, Tanzania, France, United States, Algeria |