The head of a Nigerian mission in a Commonwealth country is called

The head of a Nigerian mission in a Commonwealth country is called a High Commissioner. A High Commissioner is the equivalent of an Ambassador in a Commonwealth country. The position of a High Commissioner is a diplomatic appointment that involves representing Nigeria in the country of the mission. The High Commissioner is responsible for promoting and protecting Nigeria's interests in the host country. Nigeria, like many other Commonwealth countries, maintains diplomatic relations with other Commonwealth countries. In these countries, Nigeria is represented by a High Commissioner, who is responsible for facilitating and promoting cooperation between Nigeria and the host country. The role of a High Commissioner is similar to that of an Ambassador. They work to strengthen bilateral relations, promote trade and investment, and represent the interests of their home country. However, the term "High Commissioner" is only used in Commonwealth countries, while "Ambassador" is used in other countries. In summary, the head of a Nigerian mission in a Commonwealth country is called a High Commissioner. They are responsible for representing Nigeria and promoting Nigeria's interests in the host country.