There's still time to Register for ASTRO 2025. Join Us!

Meeting Dates: September 27 ‒ October 1, 2025
Exhibit Dates: September 28 ‒ September 30, 2025

Moscone Center, San Francisco | Livestream | onDemand

“San Francisco is a city that dreams big and where great work begins.” We couldn’t have set the tone any better to prime us for ASTRO’s 2025 Annual Meeting, and thanks to Anna Marie Presutti, President and CEO of the San Francisco Travel Association, for saying it for us. View her warm welcome and preview of our meeting site, both of the city and Moscone Center. Mayor Daniel Lurie closes the welcome, describing the city as one of innovation and bold ideas. We look forward to our meeting being one where we share just that!

Not registered yet? Register Now! Registration will remain open throughout the meeting. Can't join us in person? Check out our Virtual Full Conference option. See below to learn more about the meeting!

Register for the Meeting
Learn about Annual Meeting registration fees, deadlines and policies. Also be sure to check out Event Add-ons and ASTRO Bistro when you register.

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Reserve Your Housing
Reserve your housing early for the ASTRO Annual Meeting and pick from choice San Francisco hotels. Be sure to book your hotel with SPARGO, Inc., ASTRO’s official housing vendor.

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Call for Late-breaking Abstracts
Late-breaking abstract submissions is open June 24 – July 10, 2025. Presenting authors will be notified of the abstract status by Thursday, August 7, 2025. Submit your Late-breaking science today!

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What's In Store

Scientific Program

The Clinical Trials and Plenary sessions showcase the most impactful research in the field, including cutting-edge advancements and offering insights into practice changing findings.

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Education Program

Explore the robust lineup of Education Sessions being offered at this year's Annual Meeting including the Keynotes, Presidential Symposium and PRO program.

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Networking Opportunities

We’ve included a variety of events to help you meet and collaborate with your colleagues. Be sure to make time in your schedule for these networking opportunities.

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Speed Mentoring

We are excited to announce the return of Speed Mentoring three impactful sessions! Engage in dynamic 10-minute group sessions with our diverse panel of experts.

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ARRO Program

Join us Saturday, for this engaging in-person program designed for residents that includes the Brachy Workshop, ARRO Day and the ever-popular ARRO Bowl.

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Early Career Programming

Learn more about programming curated for Early Career members in the Early Career and Mentoring Lounge at the 2025 Annual Meeting. Check out the schedule of events.

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Health Care Access and Engagement Activities

Learn more about the improving health care access and patient outcomes track, including sessions being held in the Communities Lounge.

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International Offerings

Learn more about programming and networking opportunities for international attendees, including a special Speed Mentoring session and a breakfast with ASTRO's new CEO!

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Medical Student Opportunities

Medical students are invited to attend a workshop designed just for them on Saturday, September 27, a special Speed Mentoring Session on Sunday, September 28, as well as other sessions of interest.

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Explore the Schedule of Events and More

2025 Annual Meeting Portal
Use the Annual Meeting Portal to view the daily schedule, search for sessions and presenters and explore the Exhibitors. Once the meeting kicks off you will be able to view the livestreamed and onDemand sessions, posters and abstracts, and claim credits.

View the Portal