Mission President
A Mission President is a high priest called to watch over a specific region and its missionaries, called a Mission. Typically, a mission president and his wife serve in this function for a period of 3 years and manage the affairs of the missionaries in that area. Mission presidents are unlike Senior Missionaries in that they maintain a leadership role over all the missionaries in the area. Mission Presidents tend to be slightly older and financially successful enough to sustain themselves for their three year missions.
It is not uncommon to hear references to both a husband and wife serving as mission presidents. This is, however, incorrect as only a high priest may serve as mission president. The mission president's wife is set apart as a missionary and a companion to her husband.