About Congress


Join Your Peers at the Largest Conference Dedicated to Oncology Nursing

ONS Congress™ is the Oncology Nursing Society’s annual conference where attendees can learn the latest developments in oncology nursing through sessions led by acclaimed nursing professionals. You’ll go back to your practice with information on the newest cancer treatments and symptom management strategies, opportunities for career development, and an expanded professional network. ONS Congress is truly the best place to receive the education, clinical practice information, and patient resources that will heighten your practice’s level of patient care.

Infuse the education you learn at ONS Congress to spark change and propel your practice!


The History of ONS Congress

The Oncology Nursing Society was incorporated in 1975, and soon after, the annual conference was held in 1976 in Toronto, Canada. The first conference was one day, had about 200 attendees, and all sessions took place in one room. In 1979, the annual conference adopted the current name of the conference, “Congress,” and the first official theme was created: “Nursing Makes a Difference.”

Since its creation, Congress has evolved into a five-day event with more than 4,000 attendees. Sessions are divided into five education tracks, and attendees are encouraged to build a unique conference based on their specialty.

What ONS Congress Provides Attendees

  • Earn nursing continuing professional development (NCPD) contact hours and receive individual learning needs assessment (ILNA) points to put toward ONCC recertification.
  • Create a one-of-a-kind conference by attending sessions across five educational tracks (clinical practice, advanced practice, radiation, leadership/management/education, and research).
  • Make connections with other nurses from across the country who understand the challenges and rewards you face in your practice.
  • Gain cutting-edge treatment and symptom management information from industry leaders represented as ONS Congress exhibitors and sponsors.


Conference Outcomes

  • Recognize opportunities to impact leadership capabilities across oncology nursing roles.
  • Discuss clinical practice changes that can be implemented in individual practices or institutions.
  • Appraise clinical evidence to advance patient care from prevention to end-of-life.
  • Identify innovative approaches to influence care of patients with cancer.

Conference Accommodations

We will be posting more information soon on accommodations for lodging in Washington DC.

Coming Soon


Future Congress Events

Don’t let Congress sneak up on you. See the future dates and locations and mark your calendar now.

47th Annual ONS Congress
April 27–May 1, 2022
Anaheim, CA

48th Annual ONS Congress
April 26–30, 2023
San Antonio, TX

49th Annual ONS Congress
April 24–28, 2024
Washington, DC