Janny Knol (born August 13, 1969, in Rotterdam) is a Dutch senior police officer who has been the Commissioner (Korpschef) of the Dutch National Police in the rank of First Chief Commissioner (Eerste Hoofdcommissaris) since March 2024.

In the early years she was active in various police regions, such as IJsselland, Gelderland-Midden and Twente.

In her position, Knol was concerned, among other things, with the Intelligence portfolio, such as tackling online crime.

[5][6] In 2022, she became chief commissioner of the Eastern Netherlands regional police unit, succeeding Oscar Dros.

[7] On March 1st, 2024, she succeeded Henk van Essen as Commissioner of the Dutch National Police.