Osman Mahamud also known as Cisman Mahmoud or Ismaan Mahamuud, is a Somali sub-clan

Somali clan

The demographics of Somalia describes the condition and overview of Somalia's inhabitants. Demographic topics include basic education, health and population statistics, as well as identified racial and religious affiliations.-Somalis:...

. It forms a part of the Majeerteen

Majeerteen

The Majeerteen is a Somali clan. Its members form a part of the Harti confederation of Darod sub-clans, and primarily inhabit the Puntland region in northeastern Somalia....

 subdivision of the Harti

Harti

Harti , meaning "strong man", is a name used to denote a confederation of various Darod sub-clans of the Somali people.-Clan tree:There is no clear agreement on the clan and sub-clan structures and many lineages are omitted...

 confederation of Darod

Darod

The Darod is a Somali clan. The father of this clan is named Abdirahman bin Isma'il al-Jabarti, but is more commonly known as Darod. In the Somali language, the word Daarood means "an enclosed compound," a conflation of the two words daar and ood .The Darod population in Somalia lives principally...

 clans.

Overview

The Boqor, or clan-head, of Cisman Mahmoud serves as the nominal leader of the Harti group.

The most notable members of the Cisman Mahmoud are the Sultan of Hobyo

Sultanate of Hobyo

The Sultanate of Hobyo was a 19th century Somali ruling house in present-day northern Somalia. It was carved out of the former Majeerteen Sultanate by Yusuf Ali Kenadid, cousin of the Majeerteen Sultanate's ruler, Boqor Osman Mahamuud....

, Yusuf Ali Kenadid, who ruled over much of what today is Puntland

Puntland

Puntland , officially the Puntland State of Somalia , is a region in northeastern Somalia, centered on Garowe in the Nugaal province. Its leaders declared the territory an autonomous state in 1998....

 as far as Hobyo

Hobyo

Hobyo is an ancient harbor city in the Mudug region of Somalia. Hobyo literally means "here, water", and the plentiful fresh water to be had from the wells in and around the town has been the driving force behind Hobyo's ancient status as a favorite port-of-call for sailors.-Establishment:Hobyo's...

, and his nephew, Osman Yuusuf Keenadiid, who invented the Osmanya

Osmanya alphabet

The Osmanya script , also known as far soomaali or "Somali writing", is a writing script created to transcribe the Somali language. It was invented between 1920 and 1922 by Osman Yusuf Kenadid of the Majeerteen Darod clan, the nephew of Sultan Yusuf Ali Kenadid of the Sultanate of...

 writing script. The Cisman Mahmoud clan today primarily can be found in the Bari and Karkaar

Karkaar

Karkaar is the name of series of mountains in Northeast portion of Somalia.It is also the name of an administrative region defined by the self-declared autonomous state of Puntland...

 regions of Puntland

Puntland

Puntland , officially the Puntland State of Somalia , is a region in northeastern Somalia, centered on Garowe in the Nugaal province. Its leaders declared the territory an autonomous state in 1998....

, as well as the Kismayo area in southern Somalia. The clan can also be found settled in Oman

Oman

Oman , officially called the Sultanate of Oman , is an Arab state in southwest Asia on the southeast coast of the Arabian Peninsula. It is bordered by the United Arab Emirates to the northwest, Saudi Arabia to the west, and Yemen to the southwest. The coast is formed by the Arabian Sea on the...

 and Yemen

Yemen

The Republic of Yemen , commonly known as Yemen , is a country located in the Middle East, occupying the southwestern to southern end of the Arabian Peninsula. It is bordered by Saudi Arabia to the north, the Red Sea to the west, and Oman to the east....

.

Clan tree

There is no clear agreement on the clan and sub-clan structures and many lineages are omitted. The following listing is taken from the World Bank

World Bank

The World Bank is an international financial institution that provides loans to developing countries for capital programmes.The World Bank's official goal is the reduction of poverty...

's Conflict in Somalia: Drivers and Dynamics from 2005 and the United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

's Home Office

Home Office

The Home Office is the United Kingdom government department responsible for immigration control, security, and order. As such it is responsible for the police, UK Border Agency, and the Security Service . It is also in charge of government policy on security-related issues such as drugs,...

 publication, Somalia Assessment 2001.

• Darod
  Darod
  The Darod is a Somali clan. The father of this clan is named Abdirahman bin Isma'il al-Jabarti, but is more commonly known as Darod. In the Somali language, the word Daarood means "an enclosed compound," a conflation of the two words daar and ood .The Darod population in Somalia lives principally...
  
   (Daarood)
  • Marehan
    Marehan
    The Marehan are a Somali clan. They are one of the major Darod sub-clans, forming a part of the Sade confederation of clans. The majority of the Marehan live in the Jubbada Hoose, Gedo and Jubbada Dhexe regions in southwestern Somalia, as well as the Galguduud and Mudug regions in central...
    
    
    • Red Dini
    • Rer Hassan
    • Eli Dheere
  • Kabalah
    • Absame
      • Ogaden
        Ogaden (clan)
        The Ogaden is a Somali clan, and one of the largest Darod subclans.-Overview:Members of the Ogaden clan primarily live in the central Ogaden plateau of Ethiopia , the North Eastern Province of Kenya, and the Jubaland region of Southern Somalia...
        
        
        • Makabul
        • Mohamed Zubeir
        • Aulihan
          Aulihan
          The Aulihan are a Somali clan, a division of the larger Ogaden clan, living on both sides of the Kenya - Somalia border.The Aulihan migrated from the Ogaden region of Western Ethiopia in response to pressure from the expanding Ethiopian empire and had taken control of the hinterland of the lower...
          
          
      • Jidwaq
    • Harti
      • Dhulbahante
        Dhulbahante
        The Dhulbahante is a Somali clan, and a part of the larger Harti Darod clan. Members of the clan primarily inhabit the Sool, Nugaal, Sanaag and Ayn regions, the Haud, the port city of Kismayo, as well as other areas in the Jubbada Hoose region of southern Somalia.-Tradition:Currently, there are...
        
         (Dolbahante)
      • Warsangali
        Warsangali
        The Warsangeli , is a Somali clan, part of the Harti confederation of Darod sub-clans...
        
         (Warsengeli)
      • Majeerteen
        Majeerteen
        The Majeerteen is a Somali clan. Its members form a part of the Harti confederation of Darod sub-clans, and primarily inhabit the Puntland region in northeastern Somalia....
        
         (Mijerteen)
        • Omar Mahmud
        • Issa Mahmud
        • Osman Mahmoud (Osman Mahmud)

Prominent figures

• Abdulqawi Yusuf
  Abdulqawi Yusuf
  Dr. Abdulqawi Ahmed Yusuf is a prominent Somali international lawyer and judge. As of February 6, 2009, he is a judge at the International Court of Justice.-Biography:...
  
  , is a prominent public international lawyer and judge who is currently a judge at the International Court of Justice since February 6 2009
• Abdirashid Ali Shermarke
  Abdirashid Ali Shermarke
  Abdirashid Ali Shermarke was Prime Minister of Somalia from July 12, 1960 to June 14, 1964, and President of Somalia from June 10, 1967 until his assassination on October 15, 1969...
  
  , first Prime Minister and second President of Somalia
• Hagi Bashir Ismail Yousuf, first President of Somali National Assembly 1 July 1960, Minister of Health and Labor 1966-1967
• Omar Abdirashid Ali Sharmarke
  Omar Abdirashid Ali Sharmarke
  Omar Abdirashid Ali Sharmarke is a Somali diplomat and politician. He is the former Prime Minister of Somalia.-Biography:...
  
  , Prime Minister of Somalia
• Mohamud Muse Hersi
  Mohamud Muse Hersi
  Mohamud "Adde" Muse Hersi is a Somali politician. He was the President of the Puntland region of Somalia from January 8, 2005 to January 8, 2009.-Biography:...
  
  , former President of Puntland
• Yaasiin Cismaan Keenadiid
  Yaasiin Cismaan Keenadiid
  Yaasiin Cismaan Keenadiid is a Somali intellectual. He is one of the founders of the Somali Youth League and an influential literary scholar, having written a seminal dictionary of the Somali language.-Family and name:...
  
  , author of the Somali Dictionary and founding member of the Somali Youth League
• Jama Ali Jama
  Jama Ali Jama
  Jama Ali Jama is a Somali politician, and President of Puntland from November 14, 2001 to May 8, 2002.-Biography:Jama was a former colonel in the Somali military, and was imprisoned for 11 years during the reign of Mohamed Siad Barre after having been accused of trying to overthrow the latter.He...
  
  , Somali army colonel and former President of Puntland
• Hirsi Magan Isse
  Hirsi Magan Isse
  Hirsi Magan Isse was a scholar and one of the leading figures of the Somali revolution. A part of Somalia's political elite, he was a leader in the Somali Salvation Democratic Front , one of the earliest and most influential factions in the Somali Civil War that broke out in 1991...
  
  , scholar, and leader of the Somali revolution
• Osman Yusuf Kenadid
  Osman Yusuf Kenadid
  -Biography:In the early 1920s, in response to a national campaign to settle on a standard orthography for the Somali language , Kenadid, a leader in the Majeerteen Sultanate of Hobyo in Somalia and nephew of Sultan Yusuf Ali Kenadid, devised a phonetically sophisticated alphabet called Osmanya for...
  
  , inventor of the Osmanya writing script