Just as in many other religions, there are different sects of Buddhism. Within some of theses sects there are masters who are authorities on the religion that people recognize as a leader. For example, the Dalai Lama, who is generally thought of as the leader of Tibetan Buddhism, but is really the leader of only the Gelug branch of Tibetan Buddhism.
But in Buddhism, any one who has attained a high enough state of learning and understanding can teach others and be counted as a master. When someone attains this state it is called that they have been given transmission. Anyone given transmission can teach and be considered a master (or Guru).
So the answer is that there are many masters
Rabbis.
leaders of Hinduism worship God. While leaders of Buddhism do not worship God.
Buddha
Siddartha Gotma (Buddha)
Taoism has none Buddhism is Buddha Confucianism is Confucious
Siddhartha Gautama was the founder of Buddhism and the most influential leader of the philosophy. The Dalai Lama, Dharma Master Cheng Yen, and Thich Nhat Hanh have also acted as influential leaders of Buddhism.
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Some forms of Buddhism, such as Theravada Buddhism, do not have a central governing authority or hierarchy of leaders. Instead, authority is often decentralized and can vary from community to community.
Hinduism and Buddhism
There is no god in Buddhism & Buddhist leaders vary depending upon the different schools of Buddhism. Often people believe that H.H. the 13th Dali Lama as the leader of Buddhism, but that is only due to the fact that he is seen more often than other Buddhist leaders.
The Dalai Lama is one such example.
Buddhism is not a unified organization so that there is a single hierarchy of leadership. Each sect has its own leaders and important persons.