Family name 威拉 (Willa 
, 威拉 ) , all over the world, is quite a rare surname. The family name 威拉 is characteristic of Tanzania, where it is quite a rare surname, Switzerland, and Panama, where it is a rare surname. Measured by absolute frequency, the name is most common in Tanzania, Indonesia, and Switzerland. More frequently, 威拉 is the forename as well as the last name.