Pieter de Groot | |
|---|---|
 Pieter de Groot in c. 1652–1660 by the circle of Adriaen Hanneman | |
| Born | 28 March 1615 |
| Died | 2 June 1678 (aged 63) Boekenrode, Dutch Republic |
| Nationality | Dutch |
| Occupation(s) | Regent, diplomat |
Pieter de Groot (28 March 1615 – 2 June 1678) was a Dutch regent and diplomat during the First Stadtholderless Period of the Dutch Republic. He led the Dutch delegation that vainly tried to negotiate the Dutch capitulation to King Louis XIV of France during the Year of Disaster, 1672.