Seleninyl fluoride is an oxyfluoride of selenium with the chemical formula SeOF<sub>2</sub>.
Seleninyl fluoride can be produced by the reaction of selenium oxychloride and potassium fluoride.
It can also be produced by the reaction of selenium tetrafluoride with water or selenium dioxide.
The reaction of selenium dioxide and sulfur tetrafluoride also produces seleninyl fluoride.
Seleninyl fluoride reacts with xenon difluoride to form Xe(OSeF<sub>5</sub>)<sub>2</sub>.
It reacts with fluorine gas and potassium fluoride to form pentafluoroselenium hypofluorite.
Seleninyl fluoride have been used as specialty solvents.