John Graham, 3rd Earl of Montrose (1548 – 9 November 1608) was a Scottish peer and Chancellor of the University of St Andrews from 1599 to 1604. He was Lord High Commissioner to the Parliament of Scotland, from 1605 to 1607.
He was a natural great-grandson of King James IV of Scotland, his maternal grandmother, Janet Fleming, being a royal bastard.
| John Graham, 3rd Earl of Montrose | Father: Robert Graham, Master of Montrose |
Paternal Grandfather: William Graham, 2nd Earl of Montrose |
Paternal Great-grandfather: William Graham, 1st Earl of Montrose |
| Paternal Great-grandmother: Annabella Drummond |
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| Paternal Grandmother: Lady Janet Keith |
Paternal Great-grandfather: William Keith, 2nd Earl Marischal |
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| Paternal Great-grandmother: Lady Elizabeth Gordon |
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| Mother: Margaret Fleming |
Maternal Grandfather: Malcolm Fleming, 3rd Lord Fleming |
Maternal Great-grandfather: John Fleming, 2nd Lord Fleming |
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| Maternal Great-grandmother: Eupheme Drummond |
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| Maternal Grandmother: Lady Janet Stewart |
Maternal Great-grandfather: James IV of Scotland |
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| Maternal Great-grandmother: Agnes Stewart |
| Political offices | ||
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| Preceded by 1st Lord Maitland of Thirlestane |
Lord Chancellor of Scotland 1599–1604 |
Succeeded by 1st Earl of Dunfermline |
| Academic offices | ||
| Preceded by Lord Menmuir |
Chancellor of the University of St Andrews 1599–1604 |
Succeeded by George Gledstanes Archbishop of St Andrews |
| Peerage of Scotland | ||
| Preceded by William Graham |
Earl of Montrose 1571–1608 |
Succeeded by John Graham |