Polyvinyl chloride (PVC) polymer ne na vinyl chloride monomer (VCM) polymerized ta peroxide, azo mahadi da sauran masu farawa ko ta hanyar injin tsattsauran ra'ayi na polymerization a ƙarƙashin aikin haske da zafi. Vinyl chloride homo polymer da vinyl chloride co polymer ana kiransu vinyl chloride resin.
PVC ya kasance filastik mafi girma a duniya kuma an yi amfani da shi sosai. Ana amfani dashi sosai a cikin kayan gini, samfuran masana'antu, abubuwan yau da kullun, fata na ƙasa, tubalin bene, fata na wucin gadi, bututu, wayoyi da igiyoyi, fim ɗin kunshe, kwalabe, kayan kumfa, kayan rufewa, fibers da sauransu.