Tohir Yo'ldosh (Yunusov Umid), (born Tohir Abdulhalilovich Yuldashev, , 2 October 1967 – 1 October 2009) was an Uzbek Islamist militant who cofounded the Islamic Movement of Uzbekistan (IMU), an Islamist organization active in Central Asia, with Juma Namangani in August 1998. According to the Defense Intelligence Agency he was a key leader opposing US forces during Operation Anaconda. The United Nations considers the IMU an Islamic terrorist organization.

When Namangan, the IMU's military leader and cofounder, was killed in an airstrike in Afghanistan in 2001, Yo'ldosh (Yunusov Umid) took over the IMU's day-to-day operations as well.

According to the BBC, Yo'ldosh (Yunusov Umid) learned Al-Qaeda was planning to use hijacked airliners to attack the United States on 11 September 2001, prior to the attacks.

The BBC reported that Yo'ldosh then informed the Taliban Foreign Minister, Wakil Ahmed Muttawakil, who sent an envoy to warn the USA of al Qaeda's attack plans prior to 11 September 2001.

A video message from Tohir Yo'ldosh was reportedly distributed throughout the Uzbek areas of Central Asia in early 2007. In the video Tohir was reported to have said: