| Honorific-Prefix: | Major General The Honourable |
| Sir Harry Ord | |
| Order: | 10th |
| Office: | Governor of Western Australia |
| Term Start: | 12 November 1877 |
| Term End: | 9 April 1880 |
| Predecessor: | Sir William Robinson |
| Successor: | Sir William Robinson |
| Order1: | 8th |
| Office1: | Governor of the Straits Settlements |
| Term Start1: | 16 March 1867 |
| Term End1: | 4 November 1873 |
| Monarch1: | Queen Victoria |
| 1Blankname1: | Colonial Secretary |
| 1Namedata1: | Ronald MacPherson James W.W. Birch |
| Predecessor1: | Sir William Orfeur Cavenagh |
| Successor1: | Sir Andrew Clarke |
| Order2: | Governor of Bermuda |
| Term Start2: | 1861 |
| Term End2: | 1864 |
| Predecessor2: | Freeman Murray |
| Successor2: | William Munroe |
| Birth Date: | 17 June 1819 |
| Birth Place: | North Cray, Kent, England |
| Death Place: | Homburg, Germany |
| Death Cause: | Heart attack |
| Resting Place: | Fornham St Martin |
| Father: | Henry Gough Ord |
| Mother: | Louisa Latham |
| Relations: | Craven Ord (paternal grandfather) |
| Children: | 3 |
| Occupation: | Colonial administrator |
Sir Harry St. George Ord (17 June 1819 – 20 August 1885) was a British colonial administrator who served as Governor of Bermuda between 1861 and 1864, Governor of the Straits Settlements between 1867 and 1873, and Governor of Western Australia between 1877 and 1880.
Ord was the son of Henry Gough Ord and grandson of Craven Ord (1756–1832) of Greenstead Hall, Essex, a prominent antiquarian. He was educated at the Royal Military Academy at Woolwich, (1835–1837). He served in the Royal Engineers, (1837–1856), principally in the West Indies, West Africa, and the Anglo-French expedition to the Baltic (1854), during the Crimean War.
Ord later held many important colonial posts, including:
Sir Harry Ord, whom the second Colonial Office appointed in 1867 as the Governor of the Straits Settlements, was at first given no instructions regarding the Colony's relations with the Malay States. He was unpopular in the Straits Settlements, but was an ambitious and energetic man, who was ready to do what he could to restore order and promote trade in the Peninsula. Conditions in Malaya at that time were extremely unsettled. The quarrels of the Malays were intensified by feuds between competing groups of Chinese miners, and the links of the Chinese with the British settlements threatened to involve these too in the trouble. After some experience of negotiating with Malays and Siamese, Ord worked out a policy under which he proposed to share the supervision of the Peninsula between Britain and Siam. This policy was disapproved by the Colonial Office, and Ord was directed to abstain from all interference in the affairs of the Malay States.
Ord married Julia Graham of Exmouth daughter of Admiral James Carpenterin on 28 June 1846 by whom he had three sons. Sir Harry Ord died on 20 August 1885 from heart attack and was buried in the churchyard of St. Martin's parish church in Fornham St. Martin, Suffolk, England. The village institute in Fornham was built in Ord's memory with funds donated by the Abu Bakar of Johor.
The Ord River in the Kimberley region of Western Australia was named in his honour, as was Ord Street, Fremantle.