There is provided an end stop for a slide fastener, in which the attachment strength can be ensured irrespective of the size of the end stop, and a core can be firmly set to a setting position with respect to the end stop. The end stop has a base and a pair of legs which extend from the base, and the end stop is formed with a receptacle which is surrounded by the base and the pair of legs. The pair of legs have a pair of opening-side ends which are provided opposite to the base, and a pair of protrusions which are provided in the receptacle adjacent to the opening-side ends, the pair of protrusions protruding inward further than opposing surfaces of the pair of opening-side ends.