United States presidential inaugural balls are large social gatherings, both white tie and black tie, held to celebrate the commencement of a new term of the president of the United States. Planned and sanctioned by the Presidential Inaugural Committee, the official inaugural balls occur throughout the evening of Inauguration Day in the Washington D.C. area and are invitation-only, attended by guests who are issued pre-paid tickets. The president, first lady, vice president, and second lady or gentleman all make personal appearances at each of the inaugural balls held in their honor. Catered food, beverages, and live entertainment performed by national and globally acclaimed musicians are provided at the inaugural balls.

White tie, also called full evening dress or a dress suit, is the most formal evening Western dress code. For men, it consists of a black tail coat worn over a white dress shirt with a starched or pique bib, white piqué waistcoat and the white bow tie worn around a standing wing collar. Mid or high-waisted black trousers with galon, a braid of trim consisting of two silk stripes to conceal the outer seams of the trousers, along with court shoes complete the outfit. Orders, decorations and medals may be worn. Acceptable accessories include a black top hat, white gloves, a white scarf, a pocket watch, a white pocket square, and a boutonnière. Women wear full-length ball or evening gowns with evening gloves and, optionally, tiaras, jewellery, and a small handbag.