  We study non-invertible defects in two-dimensional $S_N$ orbifold CFTs. We
construct universal defects which do not depend on the details of the seed CFT
and hence exist in any orbifold CFT. Additionally, we investigate non-universal
defects arising from the topological defects of the seed CFT. We argue that
there exist universal defects that are non-trivial in the large-$N$ limit,
making them relevant for the AdS$_3$/CFT$_2$ correspondence. We then focus on
AdS$_3\times$S$^3\times \mathcal M_4$ with one unit of NS-NS flux and propose
an explicit realization of these defects on the worldsheet.
