| 1 | March 13 - June 16, 1964 | UNCTAD I | Geneva, Switzerland |
| 2 | February 1 - March 29, 1968 | UNCTAD II | New Delhi, India |
| 3 | April 13 - May 21, 1972 | UNCTAD III | Santiago, Chile |
| 4 | May 5-31, 1976 | UNCTAD IV | Nairobi, Kenya |
| 5 | May 7 - June 3, 1979 | UNCTAD V | Manila, Philippines |
| 6 | June 6-30, 1983 | UNCTAD VI | Belgrade, Serbia |
| 7 | July 9 - August 3, 1987 | UNCTAD VII | Geneva, Switzerland |
| 8 | February 8-25, 1992 | UNCTAD VIII | Cartagena, Colombia |
| 9 | April 27 - May 11, 1996 | UNCTAD IX | Midrand, South Africa |
| 10 | February 12-19, 2000 | UNCTAD X | Bangkok, Thailand |
| 11 | June 13-18, 2004 | UNCTAD XI | São Paulo, Brazil |
| 12 | April 20-25, 2008 | UNCTAD XII | Accra, Ghana |
| 13 | April 21-26, 2012 | UNCTAD XIII | Doha, Qatar |
| 14 | July 17-22, 2016 | UNCTAD XIV | Nairobi, Kenya |
| 15 | October 3-7, 2021 | UNCTAD XV | Online |
| 16 | October, 2025 | UNCTAD XVI | Viet Nam |