Palisa Regio is a regio, or a large area with distinct color or albedo, on 243 Ida, a main-belt asteroid. The crater was named after Johann Palisa, an Austrian astronomer, who discovered 243 Ida. The name "Palisa Regio" was officially approved by the International Astronomical Union (IAU) in 1997.
Located at , Palisa Regio has a diameter of . It is slightly concave and some astronomers suggest that it might be a highly degraded ancient crater.