Sterile neutrino is the most straightforward example connecting neutrino physics and DM. But there are different possibilities. For instance if neutrino masses are generated radiatively then new fields must be assumed and they could be good DM candidates. Another example is in the context of flavor symmetries. Spontaneous breaking of flavor symmetries can give an explanation for the stability of the DM giving a new framework where neutrino and DM could be related. However the question is how deep is the connection between neutrino and DM physics from the phenomenological point of view. In this talk I give a short review of different possibilities.