| Native Name: | Hoge heerlijkheid Purmerend en Purmerland / Hoge heerlijkheid Purmerland en Ilpendam |
| Conventional Long Name: | High Lordship of Purmerend and Purmerland / High Lordship of Purmerland and Ilpendam |
| Common Name: | Purmerend, Purmerland and Ilpendam |
| Era: | Middle Ages |
| Status: | Vassal |
| Empire: | Dutch Republic |
| Government Type: | Lordship |
| Year Start: | 1410 / 1618 |
| Event Start: | Fiefdom of Holland |
| Year End: | 1923 |
| Event Pre: | Lordship founded |
| Date Pre: | 1410 |
| Capital: | Purmerend, after 1622 Ilpenstein |
| Title Leader: | Lords |
The Free or high Lordship of Purmerend and Purmerland and after 1618 Purmerland and Ilpendam (Dutch: "vrije of hoge heerlijkheid") was a type of local jurisdiction with many rights.
As a free or high Lordship Purmerend - Purmerland - Ilpendam itself was an Allod in the province Holland. In 1410 the Lordship "Purmerend and Purmerland" was founded for Willem Eggert, the advisor of William II, Duke of Bavaria, count of Holland. In 1572 the Lordship was taken by the States of Holland.
In 1618 the new Lordship was re-established under the name "Purmerland and Ilpendam". Since 1678 the heerlijkheid was a possession of the prominent family De Graeff from Amsterdam. When the French introduced the municipal system in the Netherlands, the rights of the heerlijkheid were largely abolished, although the heerlijkheid itself existed until the early 20th century.