Kay Bailey Hutchison (born Kathryn Ann Bailey; July 22, 1943) is an American attorney, television correspondent, politician, diplomat, and was the 22nd United States Permanent Representative to NATO from 2017 until 2021. A member of the Republican Party, she was a United States Senator from Texas from 1993 to 2013.

Born in Galveston, Texas, Hutchison is a graduate of the University of Texas at Austin. Prior to entering politics, she was an attorney and legal correspondent at KPRC-TV in Houston. She was a member of the Texas House of Representatives from 1972 to 1976. After a brief business career, she returned to politics in 1990, when she was elected Texas State Treasurer. In 1993, she was elected to the United States Senate in a non-partisan special election, defeating Democratic incumbent Bob Krueger and becoming the first female senator in Texas history.

After being re-elected to the Senate in 1994, 2000, and 2006, Hutchison was an unsuccessful candidate for Governor of Texas in 2010, losing the Republican primary to incumbent Rick Perry. Hutchison was the most senior female Republican senator by the end of her tenure in 2013, and the fifth most senior female senator overall. In 2013, she joined the law firm Bracewell & Giuliani.

The downtown Dallas convention center is named after her.

On June 29, 2017, Hutchison was nominated by President Donald Trump to be the next United States Permanent Representative to NATO. She was confirmed by the U.S. Senate in a voice vote on August 3, 2017.