A hexafluoroplatinate is a chemical compound which contains the hexafluoroplatinate anion. It is produced by combining substances with platinum hexafluoride.
Xenon hexafluoroplatinate ("XePtF<sub>6</sub>"), the first noble gas compound ever synthesised. (The Xe<sup>+</sup> ion in XePtF<sub>6</sub> is unstable, being a radical; as a result, XePtF<sub>6</sub> itself is unstable and quickly disproportionates into XeFPtF<sub>5</sub>, XeFPt<sub>2</sub>F<sub>11</sub>, and Xe<sub>2</sub>F<sub>3</sub>PtF<sub>6</sub>.)