Purapporul Venbamaalai (Tamil: புறப்பொருள் வெண்பாமாலை) is a medieval Tamil text on the grammar of the puram (lit. "external") genre of the Tamil literature. Authored by , the work is dated to around the 9th century CE. It is one of the work for which the author himself has written an exegesis. The work is considered the only work on the puram genre after the Tolkappiyam. The work is extensively quoted by later scholars, including the (12th century), Nacchinarkkiniyar, and others.