Surname เจนนิกา (Jennica 
, เจนนิกา 
) , in the entire world, is a very rare cognomen. The surname เจนนิกา is habitual in Singapore, where it is a very rare surname, Venezuela, and Nicaragua. Not in comparison with a country's population, it is the most numerous in Mexico, Venezuela, and the United States. Much more prevalently, เจนนิกา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jennica | Guam, Indonesia, United States, Sweden, Philippines |
| เจนนิกา | Thailand |