Lewis Coleman Cohen, Baron Cohen of Brighton (28 March 1897 – 21 October 1966) was a British politician.
Cohen was elected as a Labour councillor and Mayor to Brighton Borough Council.
On the council he specialised in housing and worked together with Howard Johnson (a Conservative councillor) to support a local housing association.
Cohen and Johnson also knew each other through business.
Cohen was raised to the Peerage on 13 May 1965.
He was the founder of the Alliance Building Society and had many building projects which were ahead of their time in Brighton and wider Sussex.