Umar Patek (born 1970) is a member of Jemaah Islamiyah who was wanted in the United States, Australia, and Indonesia on terrorism charges. There was a $1 million reward offered by the Rewards For Justice Program for information leading to his capture. Patek is believed to have served as the assistant for the field coordinator of the 2002 bombings in Bali, Indonesia, which killed 202 people. Patek was born in 1970 and is a Javanese Arabic man, 166 cm tall, weighing 60 kg, with a brown complexion. He is also known as Umar Kecil, Umar (Arab), Pa'tek, Pak Taek, Abu Syekh, and Zacky.
Patek was captured by Pakistani security officials in Abbotabad on 25 January 2011. With 1 million dollars with him
As of July 2011, Umar Patek is in a process of extradition negotiation between Indonesia and Pakistan.