Steven Dick, deputy head of mission at the British Embassy in Budapest, has died of coronavirus.
The 37-year-old died on Tuesday in Hungary.
He had served as Deputy British Ambassador to Hungary since December, according to a biography published on the UK government's website.
In a statement, his parents Steven and Carol Dick said: "Steven was a much-loved son, grandson and nephew. He was kind, funny and generous.
"It was always his dream to work for the Foreign & Commonwealth Office and he was very happy representing our country overseas.
"We are devastated by his loss and ask for privacy at this tragic time."
Foreign Secretary Dominic Raab said: "I am desperately saddened by the news of Steven's death and my heart goes out to his parents Steven and Carol.