In an updated statement on its website, the FCO said it no longer advised against travel to Tunisia, "except for parts of the south and interior and certain areas near the borders with Algeria and Libya".
The FCO initially amended its advice following the Sousse terror attack in which 30 British holidaymakers were killed.
In June the FCO confirmed the UK government had been working closely with the Tunisian authorities to investigate the attack and the wider threat from terrorist groups in Tunisia.
Sami Tounsi, trade manager at the Tunisian National Tourist Office said he was “absolutely delighted” and praised the trade for all their support.
“I want to thank our travel agents, tour operators and business partners for their strongest belief in Tunisia, which has kept the country in their minds," he told TTG.
“We will spreading out all the information now about this change to our partners.”
Tounsi added that “co-operation” with the UK government had been integral to the change, and insisted that Tunisia was as “safe as any European destination".
The new updated advice from the FCO will be welcomed by tour operators, who had cancelled their programmes for much of 2017.
It comes as new figures yesterday from the Tunisian National Tourist Office revealed that British travellers had been defying the FCO’s advice, with almost 9,000 UK tourists travelling to the North African country in the first half of this year.
Overall Tunisia recorded 1,527,891 tourist arrivals from January 1 to May 20 2017 – up 46% compared with the same period in 2016.
In a tourism report, the Tunisian National Tourist Office said the visitor increase marked “the start of a recovery in European tourism” for the nation.
More follows