Meir David Kahane (Hebrew: מאיר דוד כהנא, also known by the pen-names Benyac and David Sinai, 1 August 1932 – 5 November 1990) was an American-Israeli rabbi and ultra-nationalist writer and political figure. He was an ordained Orthodox rabbi and later served as a member of the Israeli parliament or Knesset.
Kahane was known in the United States and Israel for political and religious views that included proposing emergency Jewish mass-immigration to Israel due to the imminent threat of a "second Holocaust" in the United States, advocating that Israel's democracy be replaced by a state modeled on Jewish religious law, and promoting the idea of a Greater Israel in which Israel would annex the West Bank and Gaza strip, paying Arabs to leave Israel and those territories voluntarily, and forcibly removing those who would not.
Kahane founded both the Jewish Defense League (JDL) in the USA and Kach ("This is the Way!"), an Israeli political party. In 1984 he became a member of the Knesset when Kach gained one seat in parliamentary elections, but in 1988, Kach was declared a racist party by the Israeli government and was banned from the Knesset. In 1994, following the Cave of the Patriarchs massacre perpetrated by a Kahane follower, Kach was outlawed completely.