Phạm Nguyên Sa (born 17 January 1989) is a Vietnamese professional footballer who plays as a defensive midfielder for V.League 1 club SHB Đà Nẵng. Nguyên Sa was born in Da Nang and started his career at SHB Da Nang. He then signed for Than Quang Ninh in October 2016. He made his international debut in 2012 and represented his country at 2012 AFF Championship.