NOW 2026 is the 13th edition of a biannual workshop series started in 1998 in Amsterdam and held since 2000 in the Apulian (Puglia) region of Italy. The editions 2000-2016 and 2024 took place in Otranto (Lecce) and the editions 2018-2022 in Rosa Marina (Ostuni, Brindisi).   

The venue of the NOW 2026 edition will be in the town of Otranto. NOW is locally organized by the INFN sections and Depts. of Physics of Bari and Lecce, ​and is widely recognized as one of the major international conference series in the field of neutrino physics. The aim of the workshop is: to discuss Neutrino Oscillation Physics, in particular current experimental data and their theoretical interpretation; to outline future investigations of neutrino masses and mixings; and to explore the links with various research fields in Astroparticle Physics and Cosmology.    

The structure of the NOW 2026 Workshop will include four plenary and parallel sessions:
• Session I – Standard three-neutrino oscillations 
• Session II – Beyond the standard framework 
• Session III – Neutrino masses, states and interactions
• Session IV – Particle physics from the sky and the cosmos 
plus an extra (only plenary) session:
• Session – Escape the neutrino maze
 
The workshop will be held from August 31 (arrivals) to September 6 (departures) at the Basiliani Hotel in Otranto, at walking distance (~25’) from the old town of Otranto and from its local beach. Because of limitations in accommodation and to fulfill the workshop requirements, participation is by invitation, and is limited to about 115 participants.          

The Proceedings of NOW 2000, 2004, 2006, 2008, 2010, 2012 and 2014 have been published on Nucl Phys. B (Proc. Suppl.) Vol. 100, 145, 168, 188, 217, 237-238, and 265-266, respectively. The Proceedings of NOW 2016, 2018, 2022 and 2024 have been published on PoS (pos.sissa.it/283  /337, /421 and /473, respectively).