The Tourism Alliance is an umbrella body that represents 53 organisations.
Wells is currently the chief executive of UKinbound and prior to this, she was the government’s head of tourism.
Her career in the Department of Culture, Media and Sport has spanned more than 20 years, during which Wells has held several high-profile positions, including programme manager for the Olympic Legacy Board.
Wells will aid the lobbying of government in the UK and Brussels on key strategic issues that face the domestic, inbound and outbound tourism industries, including Brexit and the Industrial Strategy.
She said: "I’m honoured to be asked to take on the chairmanship of this excellent organisation at a time of real challenge for the industry."
