Dominic Mckenzie Cummings (Durham, November 25, 1971) is a British political strategist author of Brexit, former chief adviser to the Prime Minister of the United Kingdom, Boris Johnson. He has a BA in Ancient and Modern History from Oxford and speaks Russian. 
From 2007 to 2014 he was a special advisor to then Secretary of Education Michael Gove. In 2015–16 he was campaign manager for Vote Leave, a pro-UK exit organization from the European Union that was actively involved in the 2016 referendum campaign on this issue. He was the man behind slogans such as "Take back control" or the promise to recover "350 million pounds a week for the National Health Service" in the event of leaving the European Union.  July 2019, the new Prime Minister Boris Johnson appointed him to the post of special adviser to the government until November 2020.