Sri Lanka Army Special Force -Long Range Reconnaissance Patrol (LRRP) has been ranked the third most dangerous Special Forces in the world by the militaryranks.info  published in June. 

United States Navy SEALs has been ranked as the most dangerous Special Forces Unit in the World. 

Top 10 list

1. .United States Navy SEALs  
2. .Special Operations Forces of the Armed Forces of the Russian Federation  
3. .Sri Lanka Army Special Force LRRP  
4. .United States Army Special Forces  
5. .British Special Air Service (SAS)  
6. .Sayeret Matkal  
7. .France’s National Gendarmerie Intervention Group  
8. .Unidad de Operaciones Especiales  
9. .MARCOS 
10. .Pakistan Army Special Service Group