The master chief petty officer of the Coast Guard (MCPOCG) is the senior enlisted member of the U.S. Coast Guard and the principal advisor to the commandant of the Coast Guard on all enlisted personnel matters.

The commandant of the Coast Guard is the service chief and highest-ranking member of the United States Coast Guard. The commandant is an admiral, appointed for a four-year term by the president of the United States upon confirmation by the United States Senate. The commandant is assisted by a vice commandant, who is also an admiral, and two area commanders and two deputy commandants, all of whom are vice admirals.