Palladium (Pd) is a metallic chemical element with atomic number 46. There are several stable palladium isotopes but the most abundant ones are ¹⁰⁶Pd and ¹⁰⁸Pd.

The major industrial use of palladium is in the catalytic converters in cars, which remove pollutants and toxic gases from the exhaust gas. Palladium is in the same periodic table group as platinum, and they're both considered precious metals.