The discoveries were made just hours - and miles - apart.
In the first incident, police were alerted shortly after 8.20am on Sunday when the body of a woman was found floating in Fairhaven Lake.
A few hours later, just before 11am, the body of another woman was found hanging under St Annes Pier.
She was named by police today as Alicia Tasker, 29, from Blackpool.
The identity of the other woman has not yet been released. It is not known how long she had been in the water. Her next of kin have been informed.
Police are not treating either incident as suspicious.
A spokesperson for Lancashire Constabulary said: "Shortly after 8.20am on Sunday police were called to Fairhaven Lake. The body of a woman, believed to be in her 60s, was found in the water."
The second body was found by a dog walker who alerted staff at the pier who called police and ambulance crews.
Police are currently treating both discoveries as separate incidents and police inquires are ongoing.