Delta Upsilon is the nation’s oldest and largest non-secret fraternity, and the world’s sixth oldest all-male, college social fraternity. As a non-secret fraternity, we do not have secret traditions and our chapters are open for anyone to observe. We stress four main principles in our fraternity: the promotion of friendship; the development of character, the diffusion of liberal culture, and the advancement of justice. True to the nature of our principles, we at Delta Upsilon build great relationships through our brotherhood. We grow to reach our full potential, and we strive to better society. In addition, we as members learn to be just when dealing with others. It is these ideals that define Delta Upsilon.




Dikaia Upotheke,
Justice, Our Foundation

Community Service & Philanthropies

Humorology, Philanthropic Barbecues, Donations to the Boys and Girls Club


Top 7 National DU Chapter (2009)

Fun Facts


Old Gold and Sapphire Blue


A Duck

Famous Alumni

Notable National Alumni

Kurt Vonnegut Jr. (Editorialist and Author)

Notable Local Alumni

John Morgridge (Former Chairman of the Board for Cisco Systems)
Brewster H. Shaw (NASA Astronaut)

General Information


644 North Frances St.
Madison, WI 53703

Local Founding

May 6, 1885

National Founding

November 4, 1834