Ariel Weinstein (Hebrew: אריאל וינשטיין, 2 May 1932 – 10 March 1996) was an Israeli journalist and politician who served as a member of the Knesset for Likud during the 1980s and 1990s.

He joined the Haganah, and after Israeli independence, served in the IDF from 1950 until 1954, being demobilised with the rank of Lieutenant-Colonel.

He was on the Likud list for the 1981 elections, but failed to win a seat.

However, he entered the Knesset on 18 October 1982 as a replacement for the deceased David Shiffman.

He returned to the Knesset on 30 December 1993 as a replacement for Roni Milo,[2] but died in office on 10 March 1996.