Sir Keith Edward Mills (born 15 May, 1950) is an English entrepreneur and was deputy chairman of the London Organising Committee of the Olympic and Paralympic Games.

Having left school with no qualifications, he started with The Economist at the age of fifteen as a copy assistant and then at the Financial Times and Investors Chronicle, where he was responsible for their marketing programmes.

In 1981, he led a management buyout of the London office of the New York-based company Nadler & Larimer, becoming the chief executive.

He had the idea in 1987 when working at his advertising agency, which had Shell and British Caledonian as clients who were looking to make the most of their customer base without devaluing the image of the products.

[7] In November 2013, Prince Harry contacted Mills to assist with the creation of his vision of an international-style Warrior Games event for sick and injured active duty and veteran service members.

This International sporting event takes place every two years to help the recovery of sick and injured active duty and veteran service members from 23 participating countries.

Mills went on to be the Chair of the Invictus Games Foundation Board of Trustees for six years, stepping down with the appointment of Lord Charles Allen in 2021.

Subsequently, in February 2023, upon the completion of the transaction, Sir Keith was named the Chairman of Camelot UK Lotteries Ltd..[10] The same month that Loyalty Management UK was sold, Mills bought £73m of the "enhanced fund" version of AIG Life "premier bonds" on the advice of Coutts, the private bank owned by Royal Bank of Scotland.

AIG Life, a UK branch of the American International Group, a US insurance company, received a bailout from the US Federal Reserve on September 16, 2008.

He was appointed Knight Grand Cross of the Order of the British Empire (GBE) in the 2013 New Years Honours List for services to the London 2012 Olympic and Paralympic Games.