The Royal Netherlands Sea Rescue Institution (Dutch: Koninklijke Nederlandse Redding Maatschappij, abbreviated: KNRM) is the voluntary organization in the Netherlands tasked with saving lives at sea.

The KNRM was created on 1 May 1991 by merging the Koninklijke Noord- en Zuid-Hollandsche Redding-Maatschappij (founded November 11, 1824), called the Noord (North), and the Koninklijke Zuid-Hollandsche Maatschappij tot Redding van Schipbreukelingen (founded November 20, 1824), called the Zuid (South).

Yearly they have about 1700 distress calls with about 3500 people saved (2008).

The KNRM also operates the Dutch Radio Medical Service (a task taken over from the Netherlands Red Cross on January 1, 1999) and provides medical advice by radio to about 900 ships each year.

Like the comparable Royal National Lifeboat Institution, which operates in the UK and Ireland, and the German Maritime Search and Rescue Service, the KNRM is entirely financed by private donations.