First Lady of the United States

First Lady of the United States (FLOTUS) is the title held by the hostess of the White House, usually the wife of the president of the United States, concurrent with the president's term in office. Although the first lady's role has never been codified or officially defined, she figures prominently in the political and social life of the United States. Since the early 20th century, the first lady has been assisted by official staff, known as the Office of the First Lady and headquartered in the East Wing of the White House.

Jill Biden has served as the first lady of the United States since 2021, as the wife of the 46th president, Joe Biden.

While the title was not in general use until much later, Martha Washington, the wife of George Washington, the first U.S. president (1789–1797), is considered to be the inaugural first lady of the United States. During her lifetime, she was often referred to as "Lady Washington".

Since the 1900s, the role of first lady has changed considerably. It has come to include involvement in political campaigns, management of the White House, championship of social causes, and representation of the president at official and ceremonial occasions.

Additionally, over the years individual first ladies have held influence in a range of sectors, from fashion to public opinion on policy, as well as advocacy for female empowerment. Historically, when a president has been unmarried or a widower, he has usually asked a relative to act as White House hostess.