This information is part of the Open Calendar, a free service of UIA's subscription-based International Congress Calendar Online (ICCO). It includes only current and future international meetings organized by non-profit organizations working worldwide in all fields of activity. The number of meetings, information contained in their profiles, and search functionality of this free service are limited.

The full-featured International Congress Calendar Online (ICCO) includes over 530,000 meetings (past, current, future), additional information in profiles, sophisticated search functionality and data exports. For more information about ICCO, please click here or contact us.

The UIA is a leading provider of information about international non-profit organizations. The aim of the Open Calendar is to promote the activities of international non-governmental organizations (INGOs) and intergovernmental organizations (IGOs).

Future International Meetings & Congresses

Event Organization Location Start Date End Date

Natural Resource Law and Governance

The Grassroots Institute (TGI) Turin, Italy 2026/04/14 2026/04/24

World Congress of Anaesthesiologists (WCA)

World Federation of Societies of Anaesthesiologists (WFSA) Marrakech, Morocco 2026/04/15 2026/04/19

World Congress on Osteoporosis, Osteoarthritis and Musculoskeletal Diseases

International Osteoporosis Foundation / European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases / Prague, Czechia 2026/04/16 2026/04/19

IABSE Spring Symposium

International Association for Bridge and Structural Engineering (IABSE) Copenhagen, Denmark 2026/04/21 2026/04/24

Annual Meeting

International Society for Heart and Lung Transplantation (ISHLT) Toronto ON, Canada 2026/04/22 2026/04/25

Annual Meeting

International Society for Autism Research (INSAR) Prague, Czechia 2026/04/23 2026/04/25

World Congress on Osteoarthritis

Osteoarthritis Research Society International (OARSI) Palm Beach FL, USA 2026/04/23 2026/04/26

Congress

World Council of Enterostomal Therapists (WCET) Vancouver BC, Canada 2026/04/24 2026/04/28

WPC Energy Congress

WPC Energy Riyadh, Saudi Arabia 2026/04/26 2026/04/30

Annual International Conference

Licensing Executives Society International (LESI) Dublin, Ireland 2026/04/26 2026/04/28

European Congress of Trauma and Emergency Surgery (ECTES)

European Society for Trauma and Emergency Surgery (ESTES) Stockholm, Sweden 2026/04/26 2026/04/28

Scientific Conference

African Society of Dermatology and Venerology (ASDV) Addis Ababa, Ethiopia 2026/04/28 2026/05/01

International Conference on Paediatric Acquired Brain Injury

International Paediatric Brain Injury Society (IPBIS) Calgary AB, Canada 2026/04/29 2026/05/02

International Pigment Cell Conference (IPCC)

International Federation of Pigment Cell Societies (IFPCS) New Delhi, India 2026/04/30 2026/05/03

Annual Conference

Particle Therapy Co-Operative Group (PTCOG) Caen, France 2026/05 2026/05

World Congress

International Society for Immunology of Reproduction (ISIR) Chicago IL, USA 2026/05 2026/05

Annual Meeting

Global Research Council (GRC) Bangkok, Thailand 2026/05 2026/05

Annual Meeting

International Anesthesia Research Society (IARS) Montréal QC, Canada 2026/05/01 2026/05/03

General Assembly

European Geosciences Union (EGU) Vienna, Austria 2026/05/03 2026/05/08

Annual Meeting

Association for Research in Vision and Ophthalmology (ARVO) Denver CO, USA 2026/05/03 2026/05/07

Annual Meeting

SIOP Europe (SIOPE) 2026/05/04 2026/05/08

Annual Meeting

Pediatric Orthopaedic Society of North America (POSNA) Orlando FL, USA 2026/05/06 2026/05/08

World Congress

International Federation of Nurse Anesthetists (IFNA) Brisbane QLD, Australia 2026/05/07 2026/05/09

Annual Conference

European College of Gerodontology (ECG) Cologne, Germany 2026/05/08 2026/05/09

Conference

Scandinavian Association for Glycogen Storage Disease (SAGSD) Ängelholm, Sweden 2026/05/08 2026/05/09

Annual Meeting

International Society for Magnetic Resonance in Medicine (ISMRM) Cape Town, South Africa 2026/05/09 2026/05/14

World Congress

International Neuromodulation Society (INS) Lisbon, Portugal 2026/05/09 2026/05/14

World Congress

International Society of Physical and Rehabilitation Medicine (ISPRM) Vancouver BC, Canada 2026/05/10 2026/05/14

International Conference on Cochlear Implants and Other Implantable Auditory Technology

International Conference on Cochlear Implants and Other Implantable Auditory Technology Warsaw, Poland 2026/05/10 2026/05/13

Asia-Pacific Conference on Non Destructive Testing

Asia Pacific Federation for Non Destructive Testing (APFNDT) Honolulu HI, USA 2026/05/11 2026/05/14

World Congress

The Association for International Sport for All (TAFISA) Prague, Czechia 2026/05/13 2026/05/17

World Congress

International Society of Medical Hydrology and Climatology (ISMH) Loznica, Serbia 2026/05/14 2026/05/16

Congress

European Operating Room Nurses Association (EORNA) Dubrovnik, Croatia 2026/05/14 2026/05/16

World Tunnel Congress

International Tunnelling and Underground Space Association (ITA) Montréal QC, Canada 2026/05/15 2026/05/21

Annual Conference

International Institute of Municipal Clerks (IIMC) Reno NV, USA 2026/05/17 2026/05/21

Meeting

International Society of Pneumonia and Pneumococcal Diseases (ISPPD) Copenhagen, Denmark 2026/05/17 2026/05/21

International Conference on Metal Organic Frameworks and Open Framework Compounds (MOF2026)

International Conference on Metal Organic Frameworks and Porous Polymers (EuroMOF) New Orleans LA, USA 2026/05/17 2026/05/21

Biennial Congress

International Society of Hematology (ISH) Bangkok, Thailand 2026/05/17 2026/05/19

International Congress of Ambulatory Surgery

International Association for Ambulatory Surgery (IAAS) Dubrovnik, Croatia 2026/05/18 2026/05/20

ISCO 21 Conference

International Soil Conservation Organization (ISCO) West Lafayette IN, USA 2026/05/18 2026/05/22

WASCON : International Conference on the Environmental and Technical Implications of Construction with Alternative Materials

International Society for Construction with Alternative Materials (ISCOWA) Fukuoka, Japan 2026/05/19 2026/05/21

Spring Meeting

Electrochemical Society (ECS) Seattle WA, USA 2026/05/24 2026/05/28

Congress

International Federation of Surveyors (FIG) Cape Town, South Africa 2026/05/24 2026/05/29

World Congress of Audiology

International Society of Audiology (ISA) Seoul, Korea Rep 2026/05/24 2026/05/27

Triennial Conference

European Association for Commonwealth Literature and Language Studies (EACLALS) Turin, Italy 2026/05/25 2026/05/29

AIR Forum Annual Conference

Association for Institutional Research (AIR) Washington DC, USA 2026/05/26 2026/05/29

Nordic Congress of General Practice

Nordic Federation of General Practice ApS (NFGP ApS) Jönköping, Sweden 2026/05/26 2026/05/29

Annual Congress

European Accounting Association (EAA) Prague, Czechia 2026/05/27 2026/05/29

Annual Conference

International Society of Behavioral Nutrition and Physical Activity (ISBNPA) Cadiz, Spain 2026/05/27 2026/05/30

Annual Meeting

European Association of Plastic Surgeons (EURAPS) Vienna, Austria 2026/05/28 2026/05/30

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