Kathryn Elizabeth Moon (née Nageotte; born June 13, 1991) is an American pole vaulter. She won gold medals at the 2020 Summer Olympics, 2022 and 2023 World Athletics Championships (shared with Australian Nina Kennedy), and silver medals at the 2022 World Indoor Championships and the 2024 Summer Olympics. Moon was also the 2019 Pan American Games silver medalist. In 2025, she became the first woman to win three world pole vault titles in a row, upon winning at the World Athletics Championships.

Nageotte was a diver at Olmsted Falls High School and a level 4 Gymnast through age 9. She graduated from the school with a state record of 3.97 m (13 ft 0 in) in the pole vault. She was the 2008 Division 1 state runner-up and the 2009 Division 1 state champion.

After starting her college career at the University of Dayton, she transferred to Ashland University where she won two NCAA Division II titles.

Nageotte signed a sponsorship deal with Nike in 2018.

In 2022, Katie Nageotte married Hugo Moon and subsequently changed her last name to Moon.

Katie Nageotte is a two-time NCAA Division II pole vault champion and three-time All-American.