A British national was among at least 20 people killed in Monday’s bomb attack in Bangkok, Foreign Secretary Philip Hammond has confirmed.
The woman is believed to be Vivian Chan, 19, who lived in Hong Kong but had been studying in London.
A spokesman for BPP University, where Ms Chan was a law student, said it was “devastated” to hear of her death.
Britons have not been advised against visiting Bangkok, but they have been told to “take extra care”.
Prime Minister David Cameron tweeted: “Deeply saddened to hear a British national was killed in the horrific Bangkok bombing. My thoughts are with her family & all those affected.”
Nine foreigners were among those killed in the attack at the Erawan Hindu shrine. More than 120 people were injured.
Professor Peter Crisp, dean of the law school at London’s BPP University, said: “Everyone at BPP University is devastated to hear of the loss of one of our students, Vivian Chan Wing Yan, in Bangkok yesterday.
“Our thoughts are with Vivian’s family and we are currently working to support them in any way we can.”
Meanwhile the Harrow International School Hong Kong said it was “deeply saddened” by the death of its former pupil.
In a statement, the school said: “Vivian was a cherished member of the school’s first cohort of leavers in June 2014.
“She was a tremendous role model in and a hugely committed, caring and supportive member of our school community; she will be sorely missed.
“The school has been in contact with Vivian’s family to express its most sincere condolences on her passing and is co-ordinating condolence and support arrangements for its students, alumnae, teachers and parents.”