Yaoundé is the capital of Cameroon and, with a population of more than 2.8 million, the second-largest city in the country after the port city Do…Yaoundé is the capital of Cameroon and, with a population of more than 2.8 million, the second-largest city in the country after the port city Douala. It lies in the Centre Region of the nation at an elevation of about 750 metres above sea level.