The PD 500 (Panzersprengbombe Dickwandig) or thick walled armor-piercing explosive bomb in English was an armor-piercing bomb used by the Luftwaffe during World War II.

The body was of two-piece drawn-steel construction which was filled through the base with RDX and was fitted with a magnesium alloy 4 finned tail with a cylindrical strut.

The PD 500 was horizontally suspended by an H-Type suspension lug in a bomb bay or fuselage hardpoint.

It was dropped in horizontal flight from a height of at least 11,500 ft (3,500 m), and penetration was stated to be 5.5–6.25 in (140–159 mm).

The bombs were painted sky blue with red stripes on the tail.