Philip Davies will be supporting Energy Minister Andrea Leadsom in her bid to become next Prime Minister.
The Shipley MP believes Mrs Leadsom “leads from the front”, will demand an end to free movement of people and deliver the right outcome for Britain following the referendum outcome.
Despite the ballot of MPs being secret Mr Davies wanted his constituents to know who he would be supporting.
He said: “I have spoken personally to the candidates for the leadership and it is clear that we have a strong field from which to choose.
"I have decided to support Andrea Leadsom as I have been incredibly impressed with her ever since she arrived in Parliament, and in particular through the EU Referendum campaign where she led from the front, and also showed a steely determination which we need in a Prime Minister.
"Andrea also has great experience from her time before entering Parliament in the Financial Services sector and that expertise and experience will be hugely beneficial over the next few years.”
Mrs Leadsom is one of five candidates hoping to succeed David Cameron. The candidate with the lowest number of votes will lose his or her place on Tuesday. MPs will continue to whittle down the candidates and the two remaining finalists will appear on the ballot papers for all Conservative Party members to vote on.
Setting out her platform Mrs Leadsom said the EU had been “stifling” Britain, vowed to end free movement of people to crack down on immigration saying there “could be no ifs of buts”. She also said the UK should not “dither” in triggering Article 50 – the start of the two year exit plan to leave the EU to begin.
The Energy Minister said she would trigger Article 50 in September if she were to be elected and that Britain’s would be out of the European Union by spring 2017.
Mr Davies added: “Whoever wins the contest will be entitled to and will receive my support, but I think Andrea Leadsom has the makings of a great Prime Minister".
The new leader will be announced on September 9.