Cognomen Somekawa (Somekawa 
) , in the entire world, is a very rare family name. The family name Somekawa is habitual in Singapore, where it is a rare surname, Poland, where it is a very rare surname, and Germany. In absolute terms, it is commonest in Brazil, Poland, and Germany. Also, Somekawa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Somekawa | Japan, Germany, United States, Poland, Brazil |
| eisuke somekawa (b. 1942) |
|