Sayyed Jamaleddin Asadabadi and commonly known as Sayyed Jamal (1838/1839 – 9 March 1897), was a political activist and Islamic ideologist who traveled throughout the Muslim world during the late 19th century. He was born in Asadabad county, Hamadan province, in Iran. Sayyed Jamal started learning from his father since he was five. He went to Qazvin and then Tehran for higher education. In 1849, He proceeded with his education in Iraq.

In 1853, Sayyed Jamal went to India to learn new science areas and invite Indian peoples to Islam by suggesting his teacher "Shaikh Ansari." But, he left India because of the British empire policies after a year. He started an intellectual movement against the British Empire's interventional procedures and created a hidden association in Egypt. Still, he was forced to leave there because of the British Empire's power again. His intellectual movement in Egypt was followed by his followers, such as "Shaikh Mohammad Abdeh." It was the start of the Egyptian peoples' revolution against the British Empire a few years later.

After leaving Eygpt, He stayed a short while in India and then went to Europe. With the help of "Mohammad Abdeh," he started publishing the "Orvat al Vosgha" journal in Paris. Also, He defended Islam against the "Ernest Renan" articles, which was written against Islam.

Sayyed Jammal comes to Iran by the direct invitation of "Nasereddin Shah," who was the king of Iran at those years. He thought that he could improve and procced his reformist thoughts by creating a friendship with the king. But, he understands that the king is the primary reason for the misery of Iranians. Therefore, he declares this fact with Iranians, and the king kicked Sayyed off from Iran.

For the second time, when Sayyed comes to Iran, he was forced to stay at the "Abd Al Azim Hassani" shrine. He was also under the king's soldiers' surveillance; yet, he started teaching people and inviting them to create a revolution against the king. Consequently, the king saw him as a threat and grant a dismissal command for him while he was sick; after that Sayyed went to Iraq and stayed there between 1891 – 1892. In Iraq, he started teaching and inviting people to Islam and his ideas about the Islamic renewal movement. The Islamic scientists know Sayyed as the leader of the Islamic renewal movement.