He was selected by constituency party chiefs following the recent sudden death of local Conservative MP and former minister Eric Forth, who held the seat with a majority of 13,342 at the last general election.
Conservative leader David Cameron commented: 'I warmly congratulate Bob Neill on his selection. He will be an outstanding candidate and an outstanding champion for Bromley and Chislehurst, a constituency he already knows extremely well as its representative on the GLA. I look forward very much to campaigning with him in the by-election.'
And Bernard Jenkin, deputy chairman of the Conservative Party, with responsibility for candidates, said: 'We are absolutely delighted that Bob has been selected as the candidate for Bromley and Chislehurst. He is the natural successor to Eric Forth, with unrivalled experience and local knowledge.'