- Ellison Onizuka colo69
- Was a Space Shuttle crew member. He flew on Discovery as a mission specialist in January 1985 and lost his life in the Challenger accident in January 1986. The United States Air Force's Onizuka Air Station was located in Sunnyvale, CA. (The station is now closed). An episode of Star Trek: The Next Generation mentions a fictional shuttlecraft named after Brother Onizuka.
- Frank R. McCabe marq50
- Won a medal in the Olympic Games. He was a member of the U.S. Olympic basketball squad which won the gold medal in 1952.
- Fred R. Kappel minn23
- Was the first person to communicate by telphone via satellite, in phone conversation with President Johnson.
- Jim Geringer ks64
- Served two terms as governor of Wyoming from 1995 to 2003.
- Jay Hammond ps41
- Served two terms as Governor of Alaska from 1975 to 1983.
- Steven L. Miller ill64
- Was chairman, president, and CEO of Shell Oil Company from 1999 to 2002. He began his career with Shell in 1967.
- Edward McCracken is64
- Was president and CEO of Silicon Graphics, whose graphics computers are used for everything from animation in Star Wars to car modeling at GM.
- Fred R. Kappel minn23
- Served as Chairman of the Board of AT&T from 1962 to 1969.
- Michael Morhaime ucla85
- Is the co-founder and President of Blizzard Entertainment, maker of the popular Warcraft and Diablo computer games.
- Robert S. Mayo ar24
- Wrote much of the entry for tunneling in the Encyclopedia Britannica.
- Forrest L. Dowling wis60
- Was one of 11 Americans who reached the South Pole overland in January 1961.
- Reinaldo Chohfi ucla85asc
- Has been credited with the discovery of Maranpampa, a large Inca city in Peru.
- Robert B. Martin pur24
- Was given the first Distinguished Service Medal awarded in Korea in 1951.
- Richard Conklin ill44
- Watched the test of the first Atomic Bomb. He and several other Triangles worked on the Manhattan Project and witnessed the test of the first atom bomb.
- Tom Graham lou45
- Served as president of two steel companies: USX and Armco Steel in Ohio. He has also served as chairman of the board of AK Steel.
