Oude Niedorp (West Frisian: Ouwe Nierup) is a village in the Dutch province of North Holland. It is a part of the municipality of Hollands Kroon, and lies about 6 kilometres (3.7 mi) northeast of Heerhugowaard.
Oude Niedorp was a separate municipality until 1970, when it merged with Nieuwe Niedorp and Winkel.
The statistical area "Oude Niedorp", which also can include the surrounding countryside, has a population of around 420.