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.

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.