20th Century Terrorists

This ranking is based on an algorithm that combines various factors, including the votes of our users and search trends on the internet.

Rank the Most Wicked Terrorists

 1 Osama Bin Laden

Osama Bin Laden.
18
Famous As: Terrorist
Birthdate: March 10, 1957
Sun Sign: Pisces
Died: May 2, 2011
Osama Bin Laden, former leader of the international terrorist organization Al Qaeda, had orchestrated the September 11 attacks on New York’s World Trade Center, among others. The attacks led to the U.S.’s War on Terror, and Laden was eventually tracked down and killed in Abbottabad, Pakistan, in 2011.

 2 Ted Kaczynski

Osama Bin Laden.
26
Famous As: Terrorist, Anarchist
Birthdate: May 22, 1942
Sun Sign: Gemini
Birthplace: Chicago

From a brilliant mathematician and an assistant professor at University of California, Theodore Kaczynski became the notorious American criminal—Unabomber—who was responsible for mail bombs that killed three people and injured 23 in eighteen years. He was eventually caught and sentenced to life imprisonment after his anti-technology essay sent to the media was recognised by his brother.

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 3 Ayman al-Zawahiri

Osama Bin Laden.
3
Famous As: Terrorist
Birthdate: June 19, 1951
Sun Sign: Gemini
Birthplace: Maadi, Egypt
Former surgeon Ayman al-Zawahiri was initially Osama bin Laden’s physician and became the leader of al-Qaeda after Laden’s death. He was one of the brains behind the 9/11 terror attacks. He also urged Muslims to kidnap Western tourists in Islamic countries and was behind the U.S. Embassy bombings in Africa.

 4 Timothy McVeigh

Osama Bin Laden.
4
Famous As: Terrorist
Birthdate: April 23, 1968
Sun Sign: Taurus
Birthplace: Lockport,New York
Died: June 11, 2001

A Gulf War veteran, Timothy McVeigh made headlines after carrying out the Oklahoma City bombing that killed 168 people. He defended his actions saying that he wanted to inspire a revolution against what he considered a tyrannical government. The bombing remains the most malignant act of domestic terrorism in American history. He was executed by lethal injection in 2001.

 5 Dawood Ibrahim

Osama Bin Laden.
8
Famous As: Criminal
Birthdate: December 27, 1955
Sun Sign: Capricorn
Birthplace: Khed Ratnagiri, Bombay State

A mobster and drug dealer most wanted by India, Dawood Ibrahim heads the organized crime syndicate popularluy known as D-Company. He was named No.3 on The World's 10 Most Wanted Fugitives by the FBI in 2011. He is wanted on the charges of terrorism, murder, targeted killing, extortion, and drug trafficking among other crimes.

 6 Khalid Sheikh Mohammed

Osama Bin Laden.
4
Famous As: Terrorist
Birthdate: March 1, 1964
Sun Sign: Pisces
Birthplace: Balochistan, Pakistan

Khalid Sheikh Mohammed is a Pakistani terrorist, who is believed to be “the principal architect of the 9/11 attacks.” A member of Osama bin Laden's al-Qaeda organization, he led al-Qaeda's propaganda operations for a few years. He is known by at least fifty pseudonyms. He was captured in 2003 and is currently detained at the Guantanamo Bay detention camp.

 7 Mohamed Atta

Osama Bin Laden
5
Famous As: Hijacker
Birthdate: September 1, 1968
Sun Sign: Virgo
Birthplace: Kafr el-Sheikh, Egypt
Died: September 11, 2001
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 8 Ramzi Yousef

Osama Bin Laden
1
Famous As: Terrorist
Birthdate: April 27, 1968
Sun Sign: Taurus
Birthplace: Kuwait

 9 Carlos the Jackal

Osama Bin Laden
0
Famous As: Mercenary, Terrorist
Birthdate: October 12, 1949
Sun Sign: Libra
Birthplace: Caracas

 10 Zacarias Moussaoui

Osama Bin Laden
2
Famous As: Terrorist
Birthdate: May 30, 1968
Sun Sign: Gemini
Birthplace: Saint-Jean-de-Luz

 11 Hafiz Muhammad Saeed

Osama Bin Laden
0
Famous As: Politician, Terrorist
Birthdate: March 10, 1950
Sun Sign: Pisces
Birthplace: Sargodha

 12 Dokka Umarov

Osama Bin Laden
0
Famous As: Militant
Birthdate: April 13, 1964
Sun Sign: Aries
Birthplace: Kharsenoy, Chechnya, Russia
Died: September 7, 2013

Chechen separatist Dokka Umarov later declared himself the emir of the Islamic Caucasus Emirate. Though a civil engineer by profession, he continued to indulge in criminal activities while working in Russia. He was eventually poisoned, and his body was found in a remote Russian area.

 13 Boris Savinkov

Osama Bin Laden
1
Famous As: Revolutionary
Birthdate: January 31, 1879
Sun Sign: Aquarius
Birthplace: Kharkiv, Ukraine
Died: May 7, 1925

 14 George Metesky

Osama Bin Laden
0
Famous As: Terrorist
Birthdate: November 2, 1903
Sun Sign: Scorpio
Birthplace: Connecticut, United States
Died: May 23, 1994

 15 Mullah Krekar

Osama Bin Laden.
0
Famous As: Founder of the terrorist organization Ansar al-Islam
Birthdate: July 7, 1956
Sun Sign: Cancer
Birthplace: Sulaymaniyah

Mullah Krekar is an Islamic scholar and militant. He is credited with founding an Islamist armed group named Ansar al-Islam. Interestingly, he claimed that he was not aware of the various terrorist attacks organized by Ansar al-Islam. He is currently serving his sentence in an Italian prison after having been deported to Italy from Norway in 2020.