Jathedar of the Akal Takht
The Jathedar of the Akal Takht (Punjabi: ਜੱਥੇਦਾਰ ਅਕਾਲ ਤਖ਼ਤ ਸਾਹਿਬ) is the head of the Akal Takht and head of the Sikhs worldwide. The jathedar has the de facto power as the supreme spokesperson of the Khalsa to summon, try and sentence any person who identifies as a Sikh from the Akal Takht.
Source: Wikipedia — Jathedar of the Akal Takht (CC BY-SA 4.0)