| Arthur Ormiston Cochrane | |
| Office: | Member of the Legislative Assembly of British Columbia |
| Predecessor: | Kenneth Cattanach MacDonald |
| Successor: | William Farris Kennedy |
| Term Start: | 1924 |
| Term End: | 1926 |
| Constituency: | North Okanagan |
| Birth Date: | 21 June 1879 |
| Birth Place: | Whitby, Ontario |
| Death Place: | Vernon, British Columbia |
| Spouse: | Helen R. Christian |
| Party: | British Columbia Conservative Party |
| Occupation: | lawyer |
| Children: | 7 |
Arthur Ormiston Cochrane (June 21, 1879 - December 4, 1926) was a Canadian politician. He served in the Legislative Assembly of British Columbia from a 1924 byelection until 1926, from the electoral district of North Okanagan, a member of the Conservative party.[1] He died in office in 1926 of heart disease (angina pectoris).[2]