| Honorific Prefix: | The Honourable |
| John James Fraser | |
| Order: | 5th |
| Office: | Premier of New Brunswick |
| Term Start: | May 3, 1878 |
| Term End: | May 25, 1882 |
| Predecessor: | George E. King |
| Successor: | Daniel L. Hanington |
| Lieutenant Governor: | Samuel Leonard Tilley Edward Barron Chandler Robert Duncan Wilmot |
| Order2: | 9th |
| Office2: | Lieutenant Governor of New Brunswick |
| Term Start2: | December 20, 1893 |
| Term End2: | November 24, 1896 |
| Predecessor2: | John Boyd |
| Successor2: | Abner Reid McClelan |
| Monarch2: | Victoria |
| Governor General2: | The Earl of Aberdeen |
| Premier2: | Andrew George Blair James Mitchell |
| Office3: | MLA for York |
| Term Start3: | March 2, 1865 |
| Term End3: | June 1, 1866 |
| Predecessor3: | Charles Fisher |
| Successor3: | Charles Fisher |
| Alongside3: | George Luther Hatheway, William Hayden Needham, John Campbell Allen |
| Term Start4: | August 3, 1872 |
| Term End4: | May 25, 1882 |
| Predecessor4: | George Luther Hatheway |
| Successor4: | Edward Ludlow Wetmore |
| Alongside4: | Robert Robinson, Andrew George Blair, Charles McPherson, Thomas F. Barker, Frederick P. Thompson, John Adolphus Beckwith, Hiram Dow, George J. Colter |
| Birth Date: | August 1, 1829 |
| Birth Place: | Beaubears Island, New Brunswick, Canada |
| Death Place: | Genoa, Italy |
| Party: | Conservative |
| Spouse: | |
| Children: | 2 daughters who died in infancy |
| Occupation: | Lawyer, judge |
| Profession: | Politician |
John James Fraser (August 1, 1829 - November 24, 1896) was a New Brunswick (Canada) lawyer, judge, and politician.
John Fraser was born at Beaubears Island, New Brunswick. He married twice, the first time in 1867 to Martha Cumming. She died in 1871 and in 1884 he married Jane Maria Paulette Fisher, eldest daughter of former Premier, Charles Fisher.
In 1865 he won a seat in the colonial legislature as an Anti-Confederation Party MLA but lost his seat the next year. After Canadian confederation he ultimately joined the government and was appointed to the legislative council serving as president of the Executive Council from 1871 to 1872. That year he won a seat in the legislature and served as Provincial Secretary from 1872 to 1878 when he succeeded George E. King as Premier and Attorney-General.
Fraser was the first premier to give both the Acadian and the Irish sections of the Roman Catholic community effective representation in cabinet. Pierre-Amand Landry was made commissioner of public works, while Michael Adams became a surveyor-general with responsibility for administering crown lands.
In 1882, after running unsuccessfully for a seat in the federal parliament, Fraser left politics and was appointed to the provincial supreme court and from 1893 to 1896 he served as the ninth Lieutenant Governor of the province.
John Fraser died in 1896 in Genoa, Italy.