Kappa Sigmas in media and entertainment:
* Jimmy Buffett, Epsilon-Nu (Southern Mississippi) - Musician
* Robert Redford, Gamma-Tau (Colorado) - Movie star
* Sam Donaldson, Epsilon-Xi (Texas-El Paso) - News correspondent, ABC News
* Mort Walker, Beta-Gamma (Missouri-Columbia) - Cartoonist
* Wink Martindale, Epsilon-Pi (Memphis State) - Entertainer
Kappa Sigmas in sports:
* Jerry Jones, Xi (Arkansas) - Owner, Dallas Cowboys
* Lamar Hunt, Epsilon-Nu (SMU) - Sports Businessman, owner of the Kansas City Chiefs
* Greg Landry, Gamma-Delta (Massachusetts) - Quarterback, Detroit Lions (retired)
* Rick Barry, Epsilon-Beta (Miami) - Golden State Warriors basketball player (retired)
* Rollie Massimino, Alpha-Lambda (Vermont) - Head basketball coach, Villanova University
* Curtis Strange, Delta-Omega (Wake Forest) - Professional golfer
* Lanny Wadkins, Delta-Omega (Wake Forest) - Professional golfer
* Jay Haas, Delta-Omega (Wake Forest) - Professional golfer
* Stump Merrill, Psi (Maine) - Coach, New York Yankees
* Steve Rogers, Epsilon-Mu (Tulsa) - Pitcher, Montreal Expos (retired)
* Carl Lundgren, Alpha-Gamma (Illinois) - Pitcher, Chicago Cubs (retired)
* Cecil Upshaw, Jr., Epsilon (Centenary) - Pitcher, Atlanta Braves (retired)
* Chuck Dobson, Gamma-Omicron (Kansas) - Pitcher, California Angels (retired)
Kappa Sigmas in politics:
* Bob Dole, Gamma-Omicron (Kansas) - Senator, R-Kansas
* James Sasser, Lambda (Tennessee) - Senator, D-Tennessee
* Bill Alexander, Xi (Arkansas) - Congressman, D-Arkansas
* Douglas Bosco, Theta-Delta (Williamette) - Congressman, D-California
* Hal Daub, Beta-Sigma (Washington-St. Louis) - Congressman, R-Nebraska
* Dante Fascell, Epsilon-Beta (Miami) - Congressman, D-Florida
* Frank Horton, Gamma (LSU) - Congressman, R-New York
* Mike Lowry, Gamma-Mu (Washington State) - Congressman, D-Washington
* Neal Smith, Beta-Gamma (Missouri-Columbia) - Congressman, D-Iowa
* George Wortley, Gamma-Iota (Syracuse) - Congressman, R-New York
Kappa Sigmas in Business:
* Jack Smith, Jr., Gamma-Delta (Massachusetts) - President, General Motors
* Robert Eaton, Gamma-Omicron (Kansas) - Chairman, Chrysler Corporation
* Paul Henson, Alpha-Psi (Nebraska) - Chairman of the Board, United Telecom
* William Hewlett, Beta-Zeta (Stanford) - Co-founder, Hewlett-Packard
* Bill Howard, Alpha-Eta (George Washington) - President, Piedmont Airlines
* Allen Jacobson, Gamma-Lambda (Iowa State) - CEO, 3M Company
* R.W. Lundgren, Gamma-Sigma (Oregon State) - Chairman of the Board, Dow Chemical
* Ben Gilmer, Beta-Eta (Auburn) - CEO, AT&T
* Peter Leggett, Upsilon (Hampden-Sydney) - Vice Persident, Legett Stores
* Willard Rockwell, Alpha-Delta (Penn State) - President, North American Rockwell
* J. Tylee Wilson, Delta-Beta (Lafayette) - Chairman, RJR Nabisco
Kappa Sigmas in academics and research:
* Denton Cooley, Tau (Texas) - Heart surgeon
* Edgar D. Mitchell, Delta-Alpha (Carnegie-Mellon) - Former Apollo program astronaut
* Edwin Hubble, Gamma-Beta (Chicago) - Astronomer
* Steven C. Beering, Chi (Purdue) - President, Purdue University
* Thomas J. Clifford, Delta-Mu (North Dakota) - President, University of North Dakota
* Arthur H. DeRosier, Jr., Epsilon-Nu (Southern Mississippi) - President, Rocky Mountain College
* John G. Johnson, Delta-Alpha (Carnegie-Mellon) - President, Butler University
* Theron Montgomery, Jr., Alpha-Nu (Wofford) - President, Jacksonville State
* John W. Ryan, Delta-Sigma (Utah) - President, Indiana University
Other Famous Kappa Sigmas:
* Rev. John M. Allin, Omega (Sewanee) - Former Bishop of the Episcopal Church
* Hoagy Carmichael, Beta-Theta (Indiana) - Composer and movie star