Jassim bin Mohammed Al Thani
| Jassim bin Mohammed Al Thani جاسم بن محمد آل ثاني | |
|---|---|
| Emir of Qatar | |
| Reign | 18 December 1878 – 17 July 1913 | 
| Predecessor | Mohammed bin Thani | 
| Successor | Ahmed bin Muhammed Al Thani | 
| Born | c. 1825 Muharraq, Bahrain | 
| Died | 17 July 1913 (aged 87–88) Lusail, Qatar | 
| Burial | Lusail Cemetery | 
| Issue | Abdullah bin Jassim Al Thani | 
| House | Thani | 
| Father | Mohammed bin Thani | 
| Religion | Islam | 
| Styles of The Emir of Qatar | |
|---|---|
| Reference style | His Highness | 
| Spoken style | Your Highness | 
| Alternative style | Sheikh | 
Jassim bin Mohammed Al Thani (Arabic: جاسم بن محمد آل ثاني; c. 1825 – 17 July 1913), also known as "The Founder", was the founder of the State of Qatar. He had a total of 56 children, 19 sons and 37 daughters.