His is expected to demonstrate loyalty to his boss, something his predecessor was accused of not doing.
Mr Roble is a relative newcomer to the political limelight in Somalia.
He hails from the central region of the country.
Mogadishu. Somali President Mohamed Farmaajo has appointed Mohamed Hussein Roble as the new prime minister, replacing Hassan Khaire who was ousted in a no-confidence vote on July 25.
According to a statement issued on Thursday night by Villa Somalia’s media office, Farmaajo urged him to urgently form a cabinet that can handle all essential national services.