text: is isliker a jewish name ? one of my greatgrand parents was from switzerland and had the surname isliker, i want to know if that name is jewish? no, this surname definitely is not of jewish origin - but of course it is possible, that some persons carrying the name are/were jews.  there are not that many persons with the surname isliker - the swiss phone directory has around 100 entries only...  the place of origin seems to be in the canton (state) of zurich. to find out more, you can make use of the suggested link.