After finding her ID card, wallet and mobile phone in a handbag she left on the bridge with her shoes, Tha Chat Chai police identified her as Kemmika Janthara-aporn, 36.
Witnesses who saw her jump managed to pull her out of the water and called police. But by the time Kusorndharm Foundation volunteers arrived, she was beyond help.
Police said they did not know why she had decided to jump off the bridge. Her body was taken to Thalang Hospital and relatives have been informed.
The Sarasin Bridge has a sad association with romantic suicide after a young couple tied themselves together and jumped from it after their parents forbade them to see each other.
That was in the 1960s, and the suicide sparked a hit song and later a well-known film. Because of this, Thai tourists often make a point of visiting the bridge when in Phuket.
Since then there have been a number of suicides from jumping off the bridge. In 2002 two deaf-mute women jumped together; one survived. In 2005 a Phuket women died after jumping into the strait below.
The bridge is no longer used for traffic but was refurbished a couple of years ago as an attraction and a place for for strollers.