Major General David Mark Cullen, CB, OBE is a senior British Army officer.

He served as the Assistant Chief of the General Staff from 2013 to 2015.

[1] He served as commanding officer of the 1st Regiment Royal Horse Artillery during deployment to Basra in Iraq in 2004,[2] for which he was appointed an Officer of the Order of the British Empire.

[3] He was made Commander of the 12th Mechanized Brigade in November 2007, in which role he saw service in Afghanistan,[4] Director of Army Staff in December 2009,[5] and Chief of Staff for Land Forces in October 2011.

[6] He went on to became Deputy Commanding General-Support, III Corps and Fort Hood in October 2012[5] and served as Assistant Chief of the General Staff from January 2013 to December 2015.