Guido Colonna di Paliano (16 April 1908 – 27 January 1982) was an Italian diplomat and European Commissioner.
Born in Naples, Colonna di Paliano graduated in law in 1930 from the University of Naples.
He served as Italy's vice-consul to Canada from 1934 to 1937.[1]
He was Vice Director for political affairs at the Ministry for Foreign Affairs, Deputy Secretary-General of the OEEC.[2]
He was deputy secretary general of NATO from 1962 to 1964.[3]
On 30 July 1964 he succeeded Giuseppe Caron as European Commissioner for Internal Market & Services in the second Hallstein Commission and he remained in the succeeding Rey Commission of 1967 as Industry Commissioner until his resignation in May 1970 just before the Commission's term of office expired. His resignation from the Rey Commission and the subsequent delay in appointing a successor confirmed reports that the Member States would not renew Rey's mandate that expired at the end of June 1970. Guido Colonna di Paliano returned to the private sector as President of the Italian department store chain, Rinascente. He also became member of the Trilateral Commission.[4]