Balfour Beatty plc (/ˌbælfʊ ˈbiːtiː/) is a British multinational infrastructure group based in the United Kingdom with capabilities in construction services, support services and infrastructure investments. A constituent of the FTSE 250 Index, Balfour Beatty works across the United Kingdom, Ireland, the United States, Canada and South East Asia.

By turnover and profit, Balfour Beatty was ranked in September 2018 as the biggest construction contractor in the United Kingdom