Globally, Geethan (Geethan 
) is a very rare dominantly female, but seldom male forename. The forename Geethan is habitual in Southern Asia, particularly India, where it is an extremely rare feminine name. Likewise, Geethan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Geethan | United States, Malaysia, Sri Lanka, Singapore, India |
| geethan iyyampillai researcher (ORCID 0000-0002-5237-7729) |
|