[en] High pressure ⁵⁷Fe Moessbauer spectroscopy measurements (up to ∼41 GPa at room temperature) have been carried out for investigating the magnetic properties of γ (fcc) ⁵⁷Fe₅₃Ni₄₇ alloy using diamond anvil cell (DAC) technique. The Moessbauer spectrum at 0 GPa shows a six line magnetic pattern with broad outer peaks and an average hyperfine field of ∼31 T characteristic of a disordered alloy. In the pressure range (2< P<20 GPa) we observe Moessbauer spectra with additional low hyperfine field component resembling spectra of γ (fcc) Fe-Ni Invar alloys (30-40 at % Ni). Our data indicate a pressure induced Invar effect for ⁵⁷Fe₅₃Ni₄₇ alloy at ∼7-12 GPa. Above 20 GPa the hyperfine field breaks down and the alloy becomes non-magnetic showing only a single line Moessbauer spectrum.