Mr Raab added that if France adopted a “go-slow” policy with Calais, it would create chaos with trade across the English Channel.
The EU responded to the Brexit Secretary’s remarks by saying that they are trying to reach a deal.
While speaking in the Commons, Mr Raab said: “There certainly is a risk of no deal, especially if the EU engage in a deliberately intransigent approach.”
According to Theresa May, a Brexit deal is 95 percent complete with the Irish border being the main ongoing stumbling block.
The Government has also been considering chartering vessels in order to make sure medicines are brought through alternate routes in the event that France blocks the Calais-Dover crossing following a no-deal Brexit.
Mr Raab said: “We need to prepare for the worst-case scenario, where the authorities at Calais are deliberately directing a go-slow approach, by supporting a diversion of the flow to more amenable ports in other countries.”
He also explained that the Government is looking into “all possible contingencies to ensure that in a no-deal scenario British businesses and livelihoods are safeguarded”.
EU spokeswoman Mina Andreeva responded to Mr Raab’s claims, saying: “The European Commission does not enter into any blame games.
“We want to reach a deal with the United Kingdom on its orderly withdrawal from the EU.
“This is what we are working for. And Michel Barnier, the commission’s chief negotiator, has said, after the European Council, that he stands ready to resume the Article 50 negotiations with the UK at any point in time.”
Meanwhile, in Brussels, multiple senior politicians, including Liberal Democrat leader Sir Vince Cable and SNP Westminster leader Ian Blackford, held talks with Mr Barnier.
Following the talks, Mr Cable was accused of indulging in fear tactics by various Eurosceptic MPs after he said that Brexit could potentially ruin Strictly Come Dancing.
He explained that post-Brexit immigration laws could prevent foreign dancers from competing.
He said: “As British society falls apart it could pose a risk to Strictly.
“If we have a cack-handed immigration policy like what we have for non-EU citizens all kinds of perverse decisions could be made.”
However, MP for North West Leicestershire Andrew Brigen responded by saying: “Since the majority of Strictly pro dancers are non-EU citizens, I am sure we will have no problem with dealing with EU citizens in the same way after Brexit.
“This is more desperate Project Fear with tassels on it from Vince Cable
“It is surely time that he waltzes off into retirement.”
Mrs May and Chancellor Philip Hammond are set to meet 120 chief executives and investors next Wednesday, two days before Mr Hammond presents his final Budget before Brexit day.