Is McKinsey’s working language English?

Yes.

McKinsey & Company is a company founded by McKinsey in the United States in 1926. Now McKinsey & Company has become a world-renowned management consulting firm. As a large multinational company, its working language is English.

McKinsey’s interviews are in English. When applying online, you are required to upload an English resume, and your spoken English is required to be up to standard during the interview. When recruiting fresh graduates, it is required that English must pass CET-6 and oral English must be good.