Thomas Cook group general counsel, Craig Stoehr, is to leave the company after three years.
Stoehr, who joined during the period when former chief executive Harriet Green was in charge, has also stepped down from his position on the Abta board with immediate effect.
Mark Tanzer, Abta chief executive, said: “On behalf of the board, I’d like to thank Craig for his contribution to Abta and wish him all the best for the future.”
Stoehr was appointed to the Abta board in December 2014.