ਪਾਰਾ ਇੱਕ ਰਸਾਇਣਕ ਤੱਤ ਹੈ। ਇਸ ਦਾ ਪਰਮਾਣੂ-ਅੰਕ 80 ਹੈ ਅਤੇ ਇਸ ਦਾ ਸੰਕੇਤ Hg ਹੈ। ਇਸ ਦਾ ਪਰਮਾਣੂ-ਭਾਰ 200.59(2) g·mol⁻¹ ਹੈ।

Mercury is a chemical element; it has symbol Hg and atomic number 80. It is also known as quicksilver and was formerly named hydrargyrum from the Greek words hydor (water) and argyros (silver). A heavy, silvery d-block element, mercury is the only metallic element that is known to be liquid at standard temperature and pressure; the only other element that is liquid under these conditions is the halogen bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature.