Sheikh Ahmad Qomi , was the Persian who introduced the Islamic faith of the Jaifari 12 imam Sect (know in Siam as the Chao Sen Sect, and known world wide as the Shi - ite Sect) to Siam in the later years of the reign of King Somdej Phra Naresuan the Great, toward the end of the Sixteenth century. He was born in 1543 in the village of Tainnajahar, Qom Persia.

Sheikh Ahmad came to Siam for the specific purpose of propagating the Islamic faith amongst the Siamese, as well as setting up a 'Trading Post'. But what took place afterwards had as much to do with fate and destiny, as with the best laid plans of man.

He was highly educated as well as well versed and qualified in the teachings of the Qoran - the Islamic Holy Scriptures. He had and intellect graced with the highest degree of integrity, loyality and responsibility besides being a shrewd administrator. He served his religion as he pledged to do. He also became Siam's greatest statesman of his time; yet, he always remained in the background, never in the limelight. When he became a member of Chao Phya Phra Klang's staff, (the Minister of the Royal Treasury, Customs and Foreign Affairs), he found that the Royal Coffers were depleted, and the system for the collection of tariffs was completely inefficient and poorly adapted to the expenditures of that time. It should be noted that, owing to the continual fighting which had taken place for decades had ceased in the later part of King Somdej Phra Naresuan the Great, Siamese manpower had been drained. The fighting forces at that time thus consisted mostly of foreign mercenaries, the payment which was the main cause of the Royal Coffers being empty. Thus his appointment to reorganize the complete tariff system on more profitable lines, could not have come at a more timely moment. In fact the system he set up was so efficient that it was continued right up to the time of King Chulalongkorn (Rama V). It must be noted that when His Majesty King Chulalongkorn (Rama V) reorganized the Royal Treasury, Customs and Foreign Affairs, it was Chao Phya Bhanuwongse (Tuam), the direct descendant of Sheikh Ahmad Qomi, who supervised the reorganization into the Ministry of Finance and the Ministry of Foreign Affairs.

When Sheikh Ahmad Qomi passed away, he held Siam's highest title, that of Chao Phya Boworn Rajnayok.