Pieter is a male given name, the Dutch form of Peter, and may refer to:
- Sint Pieter, a village now incorporated in Maastricht;
- Sint-Pieters, a suburb of Bruges;
- Pieterburen, a village in the north of Groningen;
- Pieter de Coninck (?-1332), Flemish revolutionary;
- Pieter Bruegel the Elder (c 1525-1569), Netherlandish painter;
- Pieter Brueghel the Younger (1564–1633), Netherlandish painter;
- Pieter Corneliszoon Hooft (1581–1647), Dutch historian;
- Peter Stuyvesant (originally Pieter) (c. 1612–1672), Director-General of the colony of New Netherland (New York);
- Pieter de Hooch (1629–1684), Dutch painter;
- Pieter Burmann the Elder (1668–1741), Dutch classical scholar;
- Pieter Burmann the Younger (1714–1778), Dutch philologist;
- Pieter van Maldere (1729–1768), South-Netherlandish composer;
- Pieter Zeeman (1865–1943), Dutch physicist;
- Pieter Willem Botha (1916–2006), President of South Africa;
- Pieter van Vollenhoven (1939), the husband of princess Margriet of The Netherlands;
- Pieter van den Hoogenband (1978), Dutch Olympic swimmer;
- Pieter Gruijters (1967), Dutch Paralympic athleet;
- Pieter Gerardus van Overstraten (1755–1801), Governor-general of the Dutch East Indies.