Lady Janet Hamilton of Arran was born circa 1517 in Scotland to James Hamilton, 1st Earl of Arran (c1475-1529) and Janet Bethune (1490-1522) and died circa 1574 Scotland of unspecified causes. She married Alexander Cunningham, 5th Earl of Glencairn (-1574) 26 November 1526 JL in Scotland.
Children
| Name | Birth | Death | Joined with |
| William Cunningham, 6th Earl of Glencairn (aft1530-c1578) | 1530 Scotland | 1578 Scotland | Janet Gordon (-1596) |
| Margaret Cunningham (1533-1573) | |||
| Isabelle Cunningham | |||
| Alexander Cunningham (c1547-1586) | |||
Siblings
| Name | Birth | Death | Joined with |
| James Hamilton, Duke of Châtellerault (c1516-1575) | 1516 | 22 January 1575 | Margaret Douglas (c1510-1579) |
| Janet Hamilton (c1517-1574) | 1517 Scotland | 1574 Scotland | Alexander Cunningham, 5th Earl of Glencairn (-1574) |
| Helen Hamilton (c1519-) | |||
| Name | Birth | Death | Joined with |
| Margaret Hamilton | |||
| John Hamilton | |||
| Name | Birth | Death | Joined with |
| James Hamilton (c1495-1540) | |||
| Elizabeth Hamilton | |||
| John Hamilton (1512-1571) | |||