Last name Iguan (Iguan 
) , around the world, is a very rare cognomen. The surname Iguan is habitual in Philippines, where it is a very rare surname, and Spain, where it is an extremely rare surname. Very seldom, Iguan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iguan | Philippines, United States, Spain, Nigeria |
| koni iguan Papua New Guinea politician, PG (b. 1969) |
|