Piras is a surname. Notable people with the surname include:
Annalisa Piras, Italian film director and journalist Bernard Piras (1942–2016), French politician Mattia Piras (born 1992), Italian footballer Mikki Piras, American slalom canoeist Nicola Piras (born 1991), Italian footballer Raffaele Piras (1942–2014), Italian long jumper Sebastian Piras, Italian photographer
It can also mean
Piras (mythology)