Wojciech Janowski (born 15 August 1949) is a Monegasque former businessman, diplomat, and philanthropist.

In 2018, he was sentenced to life in prison for ordering the murder of his mother-in-law, Hélène Pastor.

[3] He was a recipient of the National Order of Merit for his philanthropy from French President Nicolas Sarkozy in 2010.

[3] On 6 May 2014, Hélène Pastor and her chauffeur, Mohamed Dariouch, were shot by a gunman while leaving Archet Hospital in Nice, France, where her son Gildo was recuperating from a stroke.

[4] At the start of the trial in Monaco in 2018, he maintained that he was innocent, but five weeks later, Janowski, through his lawyer, formally admitted to ordering the shooting.