Who knew there were so many famous people named Sonja in the world? Our list of celebrities named Sonja includes pictures and information about each person when available, so you can get to know them a little better if you don't know them. The famous Sonjas below come from all walks of life, but all ended up achieving fame or notoriety in one way or another. This list includes singers named Sonja, actors named Sonja, and much more. Sonja Henie, Sonja Morgan, and Sonja Bennett are only a few of the well-known people named Sonja on this list.