Lieutenant General David James Eastman, MBE (born March 1970) is a senior British Army officer.

[3] After serving as Deputy Chief of Staff, 16 Air Assault Brigade from 2005 to 2006, he became commanding officer of 2 Close Support Battalion REME.

[3] Eastman was appointed a Member of the Order of the British Empire in December 2006, for services during the first UK deployment to Helmand Province.

[4] He went on to be commander of the 102nd Logistic Brigade in September 2015,[5] and Head of Military International Policy and Planning at the Ministry of Defence in May 2017.

[9][10] In September 2022, he was appointed Assistant Chief of the Defence Staff (Capability and Force Design).