Surname 武川 (武川 
, Takekawa 
) , in the entire world, is a rare cognomen. The family name 武川 is characteristic of Hungary, where it is a rare surname, Japan, where it is a very rare surname, and the United States. Measured by absolute frequency, it is commonest in China, the United States, and Japan. More prevalently, 武川 is the forename as well as the last name.