• New Results in X-ray Astronomy & NewAthena, Leicester (UK), 2-3 September 2026. 
• The many tones of accretion – to the memory of Tomaso Belloni, Cefalù (Sicily, Italy), 7-11 September 2026.
• Illuminating the Active Universe: Multi-Wavelength and Multi-Messenger Insights into AGN, ESO Garching (Germany), 14-17 September.
• HERA 2026 – Black Holes at Different Flavours, Warsaw (Poland), 21-25 September 2026.
• AGN on the Beach II: A multi-scale view of jetted AGN, Diani (Kenya), 21-25 September 2026. 
• International Astronautical Congress (IAC) 2026, Antalya (Turkey), 5-9 October 2026.
• Many faces of stellar-mass black holes, Kathmandu (Nepal), 12-16 October.
• 5th Astro-COLIBRI Multi-Messenger Astrophysics Workshop, Institut Pascal, Paris-Saclay (France), 12-16 October 2026.
• Many faces of stellar-mass black holes, Kathmandu (Nepal), 12-16 October 2026.
• YAGN26 - Young Astronomers on Galactic Nuclei, Sevilla (Spain), 26-28 October 2026.
• A NICER Legacy: Neutron Stars, Black Holes, and Time-Domain Astronomy, Maryland (USA), 2-4 November 2026.
• Galaxy Nuclei – Diversity, Dynamics, and Hidden Mass in Galactic Centers, Santiago de Chile (Chile), 16-20 November 2026.
• LARIM 2026, XVIII Latin American Regional IAU Meeting, Cancun (Mexico), 30 November - 4 December 2026. Registration deadline 31 August.

• NewAthena SCIENCE CONFERENCE, Prague (Czech Republic), 19-23 April 2027. 

Notice that this list is not meant to be all-inclusive. Updates, corrections, or meeting suggestions should be sent to the ACO.