The All-Time Worst People in History

List Rules
Horrible, real (not fictional) people who have committed historical crimes. No celebrities (actors, TV personalities, musicians, athletes) or politicians you disagree with.

The absolute worst people in history, ranked by the wisdom of the crowd. Who are the worst people in history? This list includes mass-murdering dictators, psychopathic serial killers, sociopathic religious leaders, insane politicians, deceptive political commentators, infamous historical figures, and bad people make our eyes and ears bleed. Who are the worst people of all time? This human scum has incited genocide, executed ethnic cleansing, enslaved entire races of people, practiced cannibalism, orchestrated arbitrary homicide, and brainwashed people who trusted them. In short, these are some of the most evil people in history.

Anyone can vote on this list of vile villains and evil lunatics, making it an accurate, real-time ranking of the world's worst people ever. Call out history's most terrible people, and see how your picks stack up against everyone else's. Which names do you expect to see related to the top 10 most hated people or even the meanest person in the world?

Ranked by
  • Adolf Hitler
    Dec. at 56 (1889-1945)
    148,902 votes
    • Birthplace: Braunau am Inn, Austria
    Adolf Hitler (German: [ˈadɔlf ˈhɪtlɐ] (listen); 20 April 1889 – 30 April 1945) was a German politician and leader of the Nazi Party (Nationalsozialistische Deutsche Arbeiterpartei; NSDAP). He rose to ...more
  • Ayman al-Zawahiri
    4,706 votes
    • Birthplace: Maadi, Egypt
    Ayman Mohammed Rabie al-Zawahiri (Arabic: أيمن محمد ربيع الظواهري‎ ʾAyman Muḥammad Rabīʿ aẓ-Ẓawāhirī; born June 19, 1951) has since June 2011 been the leader of al-Qaeda, succeeding Osama bin Laden, ...more
  • Mohamed Atta
    Dec. at 33 (1968-2001)
    4,818 votes
    • Birthplace: Kafr el-Sheikh, Egypt
    Mohamed Mohamed el-Amir Awad el-Sayed Atta ( AT-ah; Arabic: محمد محمد الأمير عوض السيد عطا‎ Muḥammad Muḥammad al-Amir 'Awaḍ as-Sayyid 'Aṭā [mæˈħæmmæd elʔæˈmiːɾ ˈʕɑwɑdˤ esˈsæj.jed ˈʕɑtˤɑ]; September ...more
  • Jihadi John
    5,168 votes
  • Uday Hussein
    Dec. at 39 (1964-2003)
    3,458 votes
    • Birthplace: Tikrit, Iraq
    Uday Saddam Hussein al-Tikriti (Arabic: عُدي صدّام حُسين‎) (18 June 1964 – 22 July 2003) was the eldest child of Saddam Hussein by his first wife, Sajida Talfah, and the brother of Qusay Hussein.  ...more
  • Khalid Sheikh Mohammed
    7,418 votes
    • Birthplace: Balochistan, Pakistan, Pakistan
    Khalid Sheikh Mohammed (sometimes also spelled Khalid Shaikh Mohammed; among at least fifty pseudonyms; born March 1, 1964; or April 14, 1965) is a Pakistani Islamist militant held by the United ...more