Hong Kong man died in a fall from the 5th floor of Mike Shopping Mall on Pattaya Beach Road on Saturday night, police said.
Police and rescuers rushed to the scene after hearing of the incident which occurred at about 7pm.
They found the man, identified later as Kwok Siu Chung, 52, lying face down on the ground floor of the shopping mall. He was seriously injured.
Rescuers gave him first-aid treatment before moving him to hospital where he was later pronounced dead.
Pattaya police were investigating the cause of the fall.