|President of the Egyptian Olympic Committee|
|Preceded by||Muhammad Abu el-Ezz|
|Succeeded by||Abdel Moneim Wahbi Hussein|
Mostafa Tolba (Arabic: مصطفى طلبة) (8 December 1922 – 28 March 2016) was an Egyptian scientist who served for seventeen years as the Executive Director of the United Nations Environment Programme (UNEP).
Born in the town of Zifta (located in Gharbia Governorate), Tolba graduated from Cairo University in 1943 and obtained a PhD from Imperial College London five years later. He established his own school in microbiology at Cairo University's Faculty of Science and also taught at the University of Baghdad during the 1950s. In addition to his academic career Tolba worked in the Egyptian civil service.
After serving briefly as President of the Egyptian Olympic Committee (1971–1972), Tolba led Egypt's delegation to the landmark 1972 Stockholm Conference, which established the United Nations Environment Programme. Tolba became UNEP's Deputy Executive Director immediately after the conference, and two years later was promoted to Executive Director. During his long tenure (1975–1992), he played a central role in the fight against ozone depletion, which culminated with the Vienna Convention (1985) and the Montreal Protocol (1987). He also was a significant influence in the creation and organization of the Intergovernmental Panel on Climate Change 
Tolba died on 28 March 2016 in Geneva at the age of 93.
- The Environment Encyclopedia and Directory 2001 (3rd ed.). Europa Publications. 2001. p. 545. ISBN 1857430891.
- "2005 Awards Profiles: Mostafa Kamal Tolba (Egypt)". The Vienna Convention Award For Outstanding Contributions to the Protection of the Ozone Layer. United Nations Environment Programme. Archived from the original on 2015-04-12. Retrieved 2010-10-08. CS1 maint: discouraged parameter (link)
- "Egyptian Olympic Committee Presidents 1910 until now" (PDF, 2.86 MB) (in Arabic). Egyptian Olympic Committee. Retrieved 2010-10-07. CS1 maint: discouraged parameter (link)[permanent dead link]
- "Mostafa Tolba: Green giant: A creator of the successful regime to reduce global emissions has died". The Economist. 2 April 2016. Retrieved 2 April 2016. CS1 maint: discouraged parameter (link)
- Bolin, Bert (2007). A History of the Science and Politics of Climate Change. The Role of the Intergovernmental Panel on Climate Change. Cambridge: Cambridge University Press.
- Weil, Martin (29 March 2016). "Mostafa K. Tolba, U.N. environmental official, dies at 93". Washington Post. Retrieved 1 April 2016. CS1 maint: discouraged parameter (link)
Muhammad Abu el-Ezz
| President of the Egyptian Olympic Committee
Abdel Moneim Wahbi Hussein
|Non-profit organization positions|
| Executive Director of UNEP