凯煦（希伯来语：כ"ך‎，拉丁拼音：Kach），是以色列的一个极右派政党。由梅尔·卡汉在1970年代初创立，奉行犹太民族主义思想。该党历经几次败选后，于1984年进入国会。然而，在国会选举法修正案通过禁止政党煽动种族主义后，被禁止参加次一届的1988年大选。1990年卡汉遇刺后，该党分裂出「卡汉永存」（希伯来语：כהנא חי‎）组织。该党在1992年以色列国会选举时仍然被禁止参选，然后两个组织都在1994年被查禁。如今，两个团体被一些国家视为恐怖组织，包括以色列、加拿大、欧盟及美国。它们被认为有部分核心成员重复，人数不足100人。

Kach (Hebrew:כ"ך‎) was a ultranationalist political party in Israel existing from 1971 to 1994. Founded by Rabbi Meir Kahane in the early 1970s, and following his Jewish nationalist ideology (subsequently dubbed Kahanism), the party entered the Knesset following the 1984 elections after several electoral failures. However, it was barred from participating in the next election in 1988 under the revised Knesset Elections Law banning parties that incited racism. After Kahane's assassination in 1990, the party split, with Kahane Chai (Hebrew:כהנא חי‎, lit. Kahane Lives) breaking away from the main Kach faction. The party was also barred from standing in the 1992 election, and both organisations were banned outright in 1994. Today both groups are considered terrorist organisations by Israel, Canada, the European Union and the United States. The groups are believed to have an overlapping core membership of fewer than 100 people.