Peul
As a surname, Thiam is found among the Fula and Wolof people of Senegal and nearby countries, and originated from a family of goldsmiths. In the modern Fula language and Wolof language orthographies, it is spelled Caam. Thiam is one of a number of older spellings which originated during French colonial rule; others include Tyam, Chiam, and Cham. This surname is spelled Thiam in Senegal, and Cham in the Gambia. The surname originated from Toucouleur or Laobe people, and is found among Pulaar language speakers. It is not authentically Wolof, and only made its way to the Wolof through Wolof mixture.