| | Yusuf M. Al-Hiari and Bassam A. Sweileh,
| The Eleventh Jordainian Pharmacy Conference | Amman-Jordan | September 28-30, 2005 | Lecturer | Original research paper, abstract and lecture |
| | Yusuf M. Al-Hiari, Inas Saleh Al-Mazari , Ashok K. Shakya, Rula M. Darwish, and Rana Abu-Dahab,
| 5th International Symposium on Pharmaceutical Chemistry | Istanbul, Turkey | Sep. 5-7, 2007 | Lecturer | abstract and oral presentation (invited speaker) |
| | Yusuf Al-Hiari* and Roger D. Waigh
| The 2nd International Conference of the Faculty of Pharmacy and the 5th Scientific Congress of the Association of the Colleges of Pharmacy in the Arab World | Amman-Jordan | October, 2001 | Participant | |
| | Yusuf Al-Hiari* and Roger D. Waigh
| The 10th Pharmaceutical Jordainian Conference of the Jordainian Pharmaceutical Society | Amman-Jordan | March 13-16/2002 | Lecturer | Poster, abstract and lecture, |
| | Yusuf M. Al-Hiari, Ashok K. Shakya, Ghassan Abu Sheikha, Bassam A. Sweileh
| The 12th Pharmaceutical Jordainian Conference of the Jordainian Pharmaceutical Society | Amman, Jordan | April 10-12/4/2008 | Lecturer | Full Lecture and abstract |
| | | The Jordan Ninth Science Week: Biotechnology and its Role in the Jordanian Economy | University of Science and Technology, Irbid-Jordan | 6-8 October 2003 | Lecturer | |
| | | The Fourth International Conference; Research and Development in Drugs: Current challenges, Pharmaceutical and Drug Industries Division | National Research Centre - Cairo/Egypt | 3-5 March 2009 | Lecturer | |
| | | The First Conference for Scientific Research in Jordan | the Society of Friends of the Scientific Research in Jordan Universities-Amman-Jordan | 25-26th/10/2003 | Participant | |
| | | Synthesis of Chemicals and Pharmaceutical Raw Materials Conference | the Arab School for Science and Technology-Damascus-Syria | 23-25/5/2005 | Lecturer | |
| | Yusuf M. Al-Hiari and Dr. Talal Aburjai
| The Importance of Intellectual Property in Scientific Research and Economic and Industrial Growth in the Arab World | Damascus-Syria | 23-25/1/2006 | Lecturer | Original research paper, abstract and lecture |
| | | ICH/GCP Training Workshop for Clinical Investigators
| Dubi, UAE | 2-3/12/2004 | Participant | |
| | | Scientific day of Medicinal, Aromatic and Poisonous Plants | Zarka University College, Al-Balqa’ Applied University, Zarqa-Jordan | 23, April 2008. | Lecturer | invited speaker-full lecture |
| | 1. Yusuf Al-Hiari* and Roger D. Waigh
| The 24th RSC Perkin Division For Scotland | Saint Andrew University / Dundee, Scotland | 18th of Feb 1998 | Participant | |
| | Yusuf M. Al-Hiari and Bassam A. Sweileh,
| The 9th International Pharmaceutical Sciences Conference and Exposition and the 9th General Assembly Meeting of the Scientific Society of Colleges of Pharmacy of the Association of Arab Universities in the Arab World | Riyadh- Saudi Arabia | 17-21/12/2005, | Lecturer | Original research paper, abstract and lecture |
| | Yusuf M. Al-Hiari and Bassam A. Sweileh
| Jordan International Pharmaceutical Conference | Al-Zaytoonah Private University of Jordan-Amman-Jordan | 15-17-Oct. 2008 | Lecturer | Invited speaker: abstract as full lecture |
| | | The First Scientific Conference for OTC drugs | Jordan Pharmaceutical Association, Amman-Jordan | 1-4-12-2006 | Lecturer | |
| | Ali M. Qaisi, Yusuf M. Al-Hiari, Jalal A. Zahra, and Mustafa M. El-Abadelah | Nagazaki university Phrmaceutical Conference | Nagazaki University, Japan | July 2006 | Lecturer | |