After staging a series of raids as part of a probe into black market art, police were able to recover the equine artworks among millions of euros worth of art.
The "Walking Horses", by Josef Thorak, were custom-made for the Berlin building, which was badly damaged in World War Two and later destroyed by Soviet forces.
The horses once stood on either side of the stairs into the chancellery that Hitler had built in downtown Berlin.
Eight people are being investigated in the case, BBC New reported.
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The works were last seen at Soviet barracks near Berlin in 1989, shortly before the fall of the Berlin wall.
According to a report in the German newspaper Bild, the statues had been painted gold, damaged by bullets and played on by children up until their disappearance.
Illicit art dealers had in recent years asked for up to four million euros on the black market for the works, the report said.