  Sterile neutrinos with masses in the range (1-100) GeV, have been searched
for in a variety of experiments. Here, we discuss the prospects to search for
sterile neutrinos at the LHC using displaced vertices. Two different cases are
discussed: (i) the standard model extended with sterile neutrinos and (ii)
right-handed neutrinos in a left-right symmetric extension of the standard
model. A dedicated displaced vertex search will allow to probe parts of the
parameter space not accessible to other searches, but will require large
luminosity in both cases.
