| James Norris Ormiston | |
| Birth Date: | 1915 5, df=y |
| Birth Place: | Regina, Saskatchewan, Canada |
| Riding: | Melville |
| Term Start: | March 1958 |
| Term End: | April 1968 |
| Predecessor: | James Garfield Gardiner |
| Successor: | riding abolished |
| Profession: | farmer, insurance agent |
| Party: | Progressive Conservative |
James Norris Ormiston (30 May 1915 – 7 August 1977) was a Progressive Conservative member of the House of Commons of Canada. He was born in Regina, Saskatchewan and became a farmer and insurance agent by career.
He was first elected at the Melville riding in the 1958 general election after unsuccessful bids for a seat there in 1953 and 1957. In his first three federal campaigns, his Liberal opponent was incumbent Member of Parliament James Garfield Gardiner. Ormiston was re-elected in 1962, 1963 and 1965. With riding boundary changes in advance of the 1968 election, Ormiston became a candidate at the Yorkton—Melville riding, where he was defeated by Lorne Nystrom of the New Democratic Party.