The administrator of the Small Business Administration is the head of the Small Business Administration of the United States. The administrator is responsible for managing and the day-to-day operations of the agency. The administrator is nominated by the president of the United States and must be confirmed by a vote of the Senate.

The United States Small Business Administration (SBA) is an independent agency of the United States government that provides support to entrepreneurs and small businesses. The mission of the Small Business Administration is "to maintain and strengthen the nation's economy by enabling the establishment and viability of small businesses and by assisting in the economic recovery of communities after disasters." The agency's activities have been summarized as the "3 Cs" of capital, contracts and counseling.