The body found floating in a pond at a Queens park over the weekend has been identified as a 73-year-old woman suffering from dementia who apparently wandered off from her home, cops and sources said.

Qinmei Lin was found unconscious and unresponsive in the kettle pond at Bowne Park just after 6 p.m. Sunday – nearly 15 hours after she was spotted leaving her home about a half-mile away in Flushing, according to authorities and law enforcement sources. 

A shell-shocked bystander spotted the senior’s body bobbing near a fountain and called 911, the sources said.

Emergency responders gingerly removed the woman’s corpse from the pond and laid her body on the grass as stunned parkgoers looked on. 

Lin was last seen leaving her home around 3:20 a.m. Sunday, police said. 

A family member reported that the elderly woman, who suffered from dementia, had vanished, the sources said. 

Her official cause of death will be determined by the city medical examiner’s office.