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Sigma Phi Omega

Sigma Phi Omega
Founded 1949
University of Southern California
Type Social
Scope Asian-Interest
Motto The Reward is in the Doing

     Kelly Green

     Maize Yellow
Symbol White Dove
Flower Yellow Rose
Pillars Strength and Character

Sigma Phi Omega (ΣΦΩ), also known as Sigmas, is an Asian American interest sorority founded at the University of Southern California in Los Angeles, California.



Sigma Phi Omega was founded at the University of Southern California in 1949, and is the oldest Asian American sorority at USC and UT Austin and third oldest in the United States. It was originally established as a social organization for Japanese and Japanese American women at USC and has since then come to consist of a diverse membership of women hailing from numerous racial and cultural backgrounds.

Early years

In its early beginnings, the founding mothers of Sigma Phi Omega were invited by Chi Alpha Delta, an Asian-American sorority from UCLA, to become one of their chapters. Chi Alpha Delta had been chartered in 1928 at UCLA, but was rendered inactive between 1942 and 1945 because the majority of its members were unable to attend UCLA due to World War II. After the end of the war, the sorority was reorganized in 1946.

However, the founding mothers decided to start their own organization. The Greek letters were chosen at random and were not used by any other existing fraternities or sororities at that time. Although Sigmas did not originate as a sorority, one could speculate that the choosing of Greek letters was a public way of voicing an unsatisfactory opinion about the treatment of Asian Americans, specifically Japanese Americans, by the campus and Greek organizations.

Founding Mothers

  • Miki Haga
  • Joyce Ishibashi Tawa
  • Ida Kado Watanabe
  • Kazuko Kay Matsumoto
  • Helen Morita Matsunaga
  • Mitzi Okamoto
  • Cherry Okimoto
  • Thelma Sasada
  • Akiko Sato Miyamoto
  • Edna Tanaka
  • Helen Taniguchi Wakamatsu
  • Miki Tanimoto
  • Dottie Uno
  • Julia Uriu
  • Grace Wada Iino
  • Betty Wakamatsu
  • Chiyoe Yata Oki


Sigma Phi Omega has chosen domestic violence awareness and prevention as its National Philanthropy. Throughout the month of October each year, all chapters of Sigma Phi Omega Sorority, Inc. organize a "SAFE (Stop Abuse in Family Environments) WEEK" filled with seminars and discussions about domestic violence and fundraising events. Sigma Phi Omega works to educate college campuses and surrounding communities, specifically reaching out to Asian and Asian American women, in an effort to stop domestic violence.

While raising domestic violence awareness is Sigmas main philanthropy, the chapters also sponsors and participate in AIDS walks, Habitat for Humanity, Canning for Hunger, Girls Inc., various shelters, clean cities programs, and many more.

Many members of Sigma Phi Omega are also individually involved within their own community through tutoring and mentoring programs for the disavantage and younger students, as well as through various volunteering programs.

Service is one of the main pillars within the sisterhood of Sigma Phi Omega. They are proud to serve their communities and contribute to make a difference in each other's live and the lives of other.

Sigma Phi Omega Today

Since its founding, Sigma Phi Omega has established eight other chapters located in California and Texas.


Sigma Phi Omega has helped young women adjust to college life for over fifty years. College is a time for new faces, endeavors, and experiences. Amongst this whirlwind of unfamiliarity, being in a sorority can help brighten your path and put things into perspective. It provides a base for lasting friendships and special memories. Sigma Phi Omega prides itself for its diversity in membership as we embrace the unique qualities and gifts each sister brings. Its alumnae have gone onto successful careers in business, law, medicine, entertainment, and education.

Although small in size, Sigma Phi Omega genuinely lives up to the true definition of sisterhood, ensuring a close-knit relationship between sister chapters. There are annual conventions held each summer as well as Mid-year Retreat, where sisters from different chapters gather to bring orders of business as well as bond. These conventions and retreats are hosted by the chapters in rotations.


Brother fraternities:

  • California: Beta Omega Phi
  • Texas: Omega Phi Gamma [1]

Cousin fraternity (Texas)

External links