Counter-Admiral Peter Frederik Wulff (26 November 1774 – 2 February 1842) was a Danish naval officer.

Wulff, his wife Henriette Wulf, and several of his children were loyal friends and supporters of the writer Hans Christian Andersen.

In 1824, he was commander of the naval training frigate Freia, which transported Prince Christian Frederik (Christian VIII) to Bornholm, leading to a controversy with counter admiral H. C. Sneedorff who wanted to command the ship while the prince was aboard.

Their younger daughter, Ida Wulff, married the architect Jørgen Hansen Koch.

Wulff's home was frequented by a number of cultural figures of the Danish Golden Age.

Wulff was introduced to a young Hans Christian Andersen and remained a loyal friend and supporter for the rest of his life.