Lieutenant General Sir Henry Marshman Havelock-Allan, 1st Baronet VC, GCB, DL (6 August 1830 – 30 December 1897) was a British soldier and politician.

He was posted with the 18th Foot to New Zealand in August 1863, where he was appointed deputy assistant quartermaster-general and served under Major General Duncan Cameron from 1863 to 1864.

For his services during this period, he was mentioned in dispatches, promoted to major on 28 June 1864, and was made a Companion of the Order of the Bath in August 1866.

[8] Ill health forced Havelock to retire from the active list on 9 December 1881, with the honorary rank of lieutenant general.

[10]Nonetheless, Havelock was able to see action at the battles of Kassassin and Tel el-Kebir, where he supposedly led a charge armed with nothing but a riding crop.

He inherited Blackwell Grange, the former property of his cousin Robert Allan, changed his surname to Havelock-Allan,[1] (as was required by the will of the latter) and became an MP for South East Durham from 1885 to 1892.