United States Navy captains

American politician (1936–2018)

American politician and diplomat (1932–2021)

Sunita Lyn Williams is a retired United States Navy captain and former NASA astronaut. Williams served aboard the International Space Station as a flight engineer for Expedition 14, Expedition 15, Expedition 32, and Expedition 71 and commander of Expedition 33 and Expedition 72. A member of NASA’s Commercial Crew program, she became the first woman to fly on a flight test of an orbital spacecraft during the 2024 Boeing Crew Flight Test and had her stay extended by technical problems aboard the ISS for more than nine months. She is one of the most experienced spacewalkers: her nine spacewalks are second-most by a woman, and her total spacewalk time of 62 hours and 6 minutes is fourth overall and the most by a woman.

James Arthur Lovell Jr. was an American astronaut, naval aviator, test pilot, and mechanical engineer. In 1968, as command module pilot of Apollo 8, he, along with Frank Borman and William Anders, became one of the first three astronauts to fly to and orbit the Moon. He then commanded the Apollo 13 lunar mission in 1970 which, after a critical failure en route, looped around the Moon and returned safely to Earth.

American astronaut and painter (1932-2018)

American astronaut and lunar explorer (1930–1999)

NASA astronaut, medical doctor, United States Navy Captain, and Space Shuttle mission specialist (1961-2003)

American astronaut (born 1951)

Gregory Reid Wiseman is an American naval aviator and NASA astronaut. He was the commander of the 2026 Artemis II lunar flyby mission, the first crewed flight around the Moon since Apollo 17 in 1972. He served as the 17th chief of the Astronaut Office from 2020 to 2022.

Mark Edward Kelly is an American politician and a retired astronaut and naval officer. He is the senior United States senator from Arizona, a seat he has held since 2020. He is a member of the Democratic Party.

U.S. Navy Commander, NASA astronaut and the pilot of Space Shuttle Columbia which was destroyed during re-entry into the Earth's atmosphere in 2003

American actor, director (1922-2011)

American naval flight officer and NASA astronaut

NASA astronaut (1933-1990)

American astronaut (1956–2003)

American astronaut and engineer (born 1964)

American astronaut (1945-1986)

American actor and United States naval officer (1909–2000)

American photographer, artist and curator (1879-1973)

American astronaut

American politician (born 1947)

American naval officer and NASA astronaut

American astronaut

NASA astronaut and Captain in the U.S. Navy Reserve

American test pilot and astronaut (1961-2012)

American astronaut

American boxer (1897-1978)

American astronaut

Astronaut, United States Navy captain

American astronaut (1943–2024)

American astronaut

American physician, soccer player, Navy officer, and astronaut (1947-1991)

American astronaut

American astronaut

American astronaut

Retired American astronaut and test pilot

American astronaut

American astronaut

American astronaut

American astronaut

American secretary of defense (1906-1998)

American astronaut (1951–2006)

American astronaut

American astronaut

American astronaut

United States Navy officer

American politician (1923–2021)

American cryptographer (1900–1976)

American pilot

Dutch American mechanical engineer (1901–1989)

United States Navy submarine officer (1918–2002)

United States Navy Medal of Honor recipient (1894-1942)

American astronaut (1935–2006)

US Navy officer (1944-2020)

United States submarine commander (1910–2000)

United States Navy Medal of Honor recipient

United States Navy officer (1801-1865)

Governor of American Samoa (1881–1938)

American politician

Hung Cao is an American politician and former military officer who has served as the acting United States secretary of the Navy since April 22, 2026, and as the 35th United States under secretary of the Navy since 2025, having served in the branch from 1989 to 2021. He was a Republican candidate for U.S. Representative in Virginia's 10th congressional district in 2022, and the party's nominee for the state's 2024 U.S. Senate election, losing to Jennifer Wexton and Tim Kaine respectively.