Phosphorus tricyanide is an inorganic compound with the chemical formula P(CN)3.

It can be produced by the reaction of phosphorus trichloride and trimethyl(iso)cyanosilane.

[2] The reaction of phosphorus tribromide and silver cyanide in diethyl ether produce phosphorus tricyanide too.

[1] Its thermal decomposition can produce graphite phase C3N3P.

[3] Phosphorus tricyanide reacts with Re(CO)5FBF3 to form {P[CN-Re(CO)5]3}(BF4)3.