Piat may refer to:
People
Given name
- Piatus of Tournai (died ), Belgian saint
- Piat Joseph Sauvage (1744–1818), Flemish painter
Surname
- Jean Piat (1924–2018), French actor and writer
- Maurice Piat (born 1941), Mauritian Roman Catholic cardinal
- Yann Piat (1949–1994), assassinated French politician
- Yves Piat, French writer and filmmaker
Other uses
- PIAT, an anti-tank weapon
- Piat, Cagayan, a municipality in the Philippines
- Peabody Individual Achievement Test
See also
- Piet (disambiguation)
- Piatt, a surname
- Saint-Piat, Eure-et-Loir, France