As a leader in the healthcare industry, Sigma provides you with opportunities to engage with other nurses to develop your professional and leadership skills. As a member, you are part of a global network of more than 135,000 active members in 500 chapters in over 90 countries. Follow us on social media, connect with one another on The Circle (a private social networking site for Sigma members), and join us in-person at one of our events!


ChaptersSigma chapters provide connections at the local level for nurses to make a difference in their communities. Be a change agent through active involvement; volunteer as a chapter leader!  Learn more »



 Sigma's events are world-renowned. Join us for the biennial convention, International Nursing Research Congress, Leadership Connection, or collaborative events with other nursing organizations. Connect with peers and earn continuing nursing education credits!  Learn more »



VolunteerLet Sigma know your interests by completing your volunteer profile. Develop professional skills as you help the honor society! Volunteer opportunities are at the chapter, regional, and international levels! Learn more » 

Kiger, Christina

Leadership from Alpha to Omega

Leadership and excellence unite in Sigma's Omega chapter president Christina Kiger
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Home (Care) is Where the Heart is for Sigma Member

Laura Price's career path reinforced by Sigma, thanks to the Edith Anderson Membership Subsidy.
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Edith Anderson Membership Subsidy Recipient Channels Love of Service

McKenzie Mills has been enriched by Sigma thanks to the Edith Anderson Membership Subsidy.
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Abby Heydman

Distinguished Nurse Retires But Doesn't Slow Down

Abby Heydman's long career acknowledged
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Sigma Theta Tau International is helping influence the global agenda on healthcare through its collaborative efforts with the World Health Organization (WHO), the United Nations (U.N.), and dozens of nursing organizations worldwide. See what we're doing, become involved, and make a difference at home and abroad. It will change your world!

Global Initiatives

Global Initiatives

Sigma continues to establish alliances with international healthcare organizations, support global nursing initiatives, and collaborate and connect with nurses and members worldwide. Learn more »

United Nations

STTI and the UN

As a non-governmental organization (NGO) of the U.N. with ECOSOC status, Sigma and its members are strategically positioned to improve world health through consulting and collaborating with the U.N. and other NGOs. Learn more »



The Global Advisory Panel on the Future of Nursing & Midwifery (GAPFON) seeks to participate in and influence health policy, leadership and practice, education, and the global health agenda; provide evidence on the value of nursing and midwifery; and advance toward achieving global healthcare for all. Learn more »