The 'Trouble' singer was recently said to be romantically involved with the One Direction singer, according to a tabloid report.
However, Lewis has been quoted as saying that the rumours are untrue, and that she is still currently single, reports Metro.
Lewis ended her relationship with German dancer Dennis Jauch last month.
However, an official statement from the former X Factor winner has yet to be made.
Payne has previously spoken of having a crush on Lewis, telling a radio interview she was "beautiful". He added: "I have liked her ever since she did The X Factor all of those years ago."
The 19-year-old broke up with his girlfriend of two years Danielle Peazer last week.
Leona Lewis will perform her new single 'Trouble' on the first X Factor live results show on Sunday (October 7).
She will release her third studio album Glassheart in the UK on October 15.
Watch the video for Leona Lewis's 'Trouble' below: