Wang Yung-ching, also called YC Wang, was a Taiwanese businessman. He was best known for being at the chairman of Formosa Plastics Corporation, one of Taiwan's foremost plastic manufacturing establishments until is retirement in June 2006, where he stepped down at the age of 89.

Formosa Plastics Corporation is a Taiwanese plastics company based in Taiwan that primarily produces polyvinyl chloride (PVC) resins and other intermediate plastic products. It is the corporation around which influential businessman Wang Yung-ching formed the Formosa Plastics Group, and it remains central to the Group's petrochemical operations. The president of Formosa Plastics Corp. (FPC) is Jason Lin (林健男).