LDUN Vienna
Join us for Lions Day with the United Nations on Wednesday, April 29, 2026 in Vienna, Austria.
Take an active role in this important global partnership, connect with fellow Lions and Leos, and be part of the conversations that will shape the future of our service!

Have an unforgettable experience
When you attend LDUN Vienna, you'll experience an incredible event in one of Europe's most captivating cities, where you can:
- Visit the iconic Vienna International Center, known in Austria as “UNO City,” which includes a fine art collection featuring artists from around the world.
- Experience all that Vienna has to offer, including a rich history of art, architecture, music, cuisine and more.
- Network with Lions, Leos, and officials from the United Nations.
- Learn about recent developments in our U.N. partnership and how you can take action.
Event registration
Registration for LDUN Vienna has closed. We can't wait to see you next year!
Event details
Tuesday, April 28
Early registration material pick-up: 12:00 p.m. – 6:30 p.m.
Steigenberger Hotel Herrenhof
Herrengasse 10
1010 Vienna
Austria
Materials include badges which must be picked up at the hotel before entering the United Nations.
All delegates will be required to bring and show their identification documents before entering the United Nations.
Wednesday, April 29
Last call registration material pick-up: 7:00 a.m. – 9:00 a.m.
Steigenberger Hotel Herrenhof
Herrengasse 10
1010 Vienna
Austria
Materials must be picked up at the hotel before entering the United Nations.
All delegates will be required to bring and show their government-issued IDs before entering the United Nations.
LDUN program: 10:00 a.m. – 5:00 p.m.
United Nations Office at Vienna – Vienna International Center
Building C, Boardroom D
Wagramer Strasse 5
1400 Vienna
Austria
Program notes:
- Attire is business or business casual.
- General entry to the U.N. begins at 8:30 a.m. Please arrive at the Vienna International Center - Gate 1 (Main Entrance) and allow at least 45 minutes to make your way through security screening to the conference facilities.
- Bring your government-issued photo ID along with your LDUN event badge for the UNOV security. The name on your government-issued ID must match the name in your LDUN event registration. The government-issued ID also must be the same one that was entered in the registration form.
- The program provides for a lunch break. Food and drinks can be purchased at the Vienna International Center cafeteria. A voucher of €15,00 for the cafeteria is available for attendees.
- Presentations will be in English only.
Guided United Nations tours
United Nations Office at Vienna – Vienna International Center
Wagramer Strasse 5
1400 Vienna
Austria
All tours require registration and are available on a first come, first served basis. Please wear comfortable shoes.
For more information on tour times, costs and details, please visit the registration site.
LDUN Farewell Reception: 5:00 p.m. – 6:00 p.m.
United Nations Office at Vienna – Vienna International Center
Cafeteria
1400 Vienna
Austria
Light refreshments including local wine and beer will be served. Hosted by the Lions of Austria.
Hotel information
The Steigenberger Hotel Herrenhof is the headquarters hotel for LDUN. A special hotel rate starting at €249,00 is being offered to Lions through Tuesday, March 24, 2026. Discounted rooms are limited and may sell out prior to the cutoff date.
Steigenberger Hotel Herrenhof
Herrengasse 10
1010 Vienna
Austria
Additional information
Cancellations and refunds
- Cancellation and refunds for LDUN Vienna must be requested before April 15, 2026. No exceptions will be made after this date.
- Sleeping rooms at the Steigenberger Hotel Herrenhof must be cancelled with the hotel by April 7, 2026 to receive a refund. No exceptions will be made after this date.
- All requests for cancellations and refunds must be made in writing via email to [email protected]. No exceptions will be made.
- LDUN registration cannot be transferred to another Lion, Leo, guest, child, or a future convention or future LDUN event.
- A cancellation fee of US$10 will be withheld from each approved refund for LDUN registration.
Visa invitation letters
A visa letter of invitation to LDUN should not be required. However, if it is requested, you will be able to download one from the confirmation email sent after completing your LDUN registration.
Contact us
If you have questions or need additional information, please contact us at [email protected].