The RNLI and Coastguard rescue teams were called out on a two hour search after reports of calls to help coming from the sea.
The Lytham St Annes RNLI lifeboat Her Majesty the Queen was launched around 9.45pm on Wednesday to search off Blackpool after claims someone could be heard calling for help in near gale force conditions.
The lifeboat launched and raced as far north as Gynn Square before the Coastguard called the search off a few hours later.
The lifeboat returned to the station at midnight and was washed off and refuelled by 1.15am.
Lytham lifeboat volunteer deputy second coxswain Nick Glassbrook was in command of the vessel.
He said: “The visibility for searching was not too bad with the glow from the promenade lights on one side and the moon illuminating the rest.
“Fortunately it appears to have been a false alarm with good intent.”
It has been a busy week for the lifeboat crew after working in Liverpool as a safety boat, along with Hoylake and New Brighton Lifeboats, at the Three Cunard Queens event on the River Mersey on Monday.