Family name गंगाधर (Gangadhar 
, गंगाधर ) , in all the world, is a common cognomen. The surname गंगाधर is characteristic of Western Asia, particularly Bahrain, where it is quite a common surname, Oman, and United Arab Emirates. Measured by absolute frequency, the name is most common in India, Saudi Arabia, and United Arab Emirates. More prevalently, गंगाधर is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gangadhar | United Arab Emirates, Oman, India, Saudi Arabia, Bahrain |
| गंगाधर | India |