  We present the search for Lorentz violation in the double beta decay of
^{82}Se~with CUPID-0, using an exposure of 9.95 kg x y. We found no evidence
for the searched signal and set a limit on the isotropic components of the
Lorentz violating coefficient of $\mathring{a}_{\text{of}}^{(3)} <
4.1\cdot10^{-6}$ GeV (90\% Credible Interval). This results is obtained with a
Bayesian analysis of the experimental data and fully includes the systematic
uncertainties of the model. This is the first limit on
$\mathring{a}_{\text{of}}^{(3)}$ obtained with a scintillating bolometer,
showing the potentiality of this technique.
