Rhenium tetrafluoride is a binary inorganic compound of rhenium and fluorine with the chemical formula .
Rhenium tetrafluoride can be made by the reduction of rhenium hexafluoride with hydrogen, rhenium, or sulfur dioxide:
Rhenium tetrafluoride forms blue crystals of tetragonal structure, cell parameters a = 1.012 nm, c = 1.595 nm.
Rhenium tetrafluoride reacts with water, and corrodes glass when heated.