ONS Annual Congress 2027
Oncology Nursing Society
- Dates
- April 14–18, 2027 Confirmed
- Location
- Walter E. Washington Convention Center, Washington, United States
- Expected attendance
- About 3,600
- Therapy or topic area
- Oncology
About the Meeting
ONS Congress brings oncology nurses together for five days of cutting-edge education, meaningful networking, and professional growth. The 2027 edition features comprehensive educational sessions led by field experts, peer-to-peer learning opportunities, a robust Learning Hall, and a variety of industry events covering the latest in cancer care.
Based on the official ONS website. Abstracts are published in Oncology Nursing Forum.
Key Dates for ONS 2027
| Milestone | Date | Status |
|---|---|---|
| Abstract submission opens | August 10, 2026 | Passed |
| Abstract submission deadline | September 24, 2026 | Passed |
| Late-breaking abstract deadline | January 1, 2027 | Confirmed |
| Abstract notification | November 23, 2026 | Confirmed |
| Meeting | April 14–18, 2027 | Confirmed |
Subscribe to all ONS dates
Google Calendar Outlook.com Microsoft 365 Download for Apple / Outlook app (.ics)Submitting an Abstract to ONS 2027
- Length
- Up to 385 words in the abstract body, including section headers. Longer abstracts are not reviewed. 2026 rules
- Tables and figures
- One image file allowed. It can hold several figures, tables or images, each with a title. Images are not published. 2026 rules
- Who can submit
- The primary author must submit. Each primary author can submit up to two abstracts, with at most six authors per abstract. Industry-supported abstracts are posters only. 2026 rules
- Membership required
- No 2026 rules
- Previously presented work
- No encore abstracts or work already presented to national or international audiences. Work presented only locally or regionally, and secondary analyses, are accepted. 2026 rules
ONS hasn't published its 2027 guidelines yet. Until it does, items marked 2026 rules show the 2026 requirements. Summarized from ONS's guidelines, checked October 22, 2026. The official guidelines always take precedence.
Common Questions
When is the ONS 2027 abstract deadline?
The abstract submission deadline was September 24, 2026, and late-breaking abstracts are due January 1, 2027. Both dates are confirmed.
When and where is ONS 2027?
ONS 2027 takes place April 14–18, 2027 at Walter E. Washington Convention Center in Washington, United States. The dates are confirmed.
How many people attend ONS?
About 3,600 people are expected at ONS 2027.
How can our team cover ONS efficiently?
harmony Insights turns the full ONS program into a searchable catalog within 24 hours of abstract titles being posted, scored against your scientific interests. See how it works.
Past Editions
| Year | Meeting dates | City | Abstract deadline |
|---|---|---|---|
| 2026 | May 13–17, 2026 | San Antonio | September 25, 2025 |
| 2025 | April 9–13, 2025 | Denver | September 26, 2024 |
| 2024 | April 24–28, 2024 | Washington | Not recorded |
| 2023 | April 26–30, 2023 | San Antonio | Not recorded |
Last updated November 12, 2026. Source: Orbytel Group conference database. Dates marked estimated are our projections, not the organizer's.
The Meeting Is About 22 Weeks Away. Know What to See Before You Go.
Get every ONS session and abstract, scored against your scientific interests, in an Excel planner within 24 hours of abstract titles posting. It updates as more is released.
How Insights worksAttending ONS 2027?
harmony Insights turns a conference's full program into a searchable catalog within 24 hours of abstract titles being posted, with every talk, poster and abstract scored against your scientific interests.