[en] Magnetic properties of tetragonal rare earth germanides of the type RFe₂Ge₂, where R = Pr, Gd, Tb, Er and Th, were investigated in the temperature interval 4.2 to 273 K and in magnetic fields up to 20 kOe. The magnetization of ThFe₂Ge₂ is small and weakly temperature dependent. The compounds with Pr, Gd and Tb show antiferromagnetic ordering with Neel temperature of 14⁰K, 11⁰K and 7.5⁰K, respectively. The Pr sublattice in PrFe₂Ge₂ and the Tb sublattice in TbFe₂Ge₂ both undergo a transition, which at 4.2⁰K occurs at a field strength of about 15 kOe. The Gd compound does not show a transition up to a field of 20 kOe. The compound ErFe₂Ge₂ is paramagnetic in the temperature range investigated. However, some magnetization from Fe sublattice seems to be present in all the compounds