Wolfgang von Haffner (10 September 1810 – 28 April 1887) was a Danish military officer and politician.
In November 1832, he married Sophie Wilhelmine Caroline Krieger (1807–1889).
He had a military career in his early life, being second lieutenant at the age of 15.
He left in 1872 due to disagreements with the Finance Minister, Andreas Frederik Krieger.
On 11 June 1875, when the Estrup Cabinet assumed office, Haffner returned to both his posts.