Grania (or Grace) O'Malley (born Gráinne Ní Mháille)
Irish pirate
Grania Meve Rosaura
Lady Normanby, Irish heiress of the Guinness brewing family
Grania Rosette Makatu Rubomboras
Ugandan electrical engineer and corporate executive
Grania Sybil Enid Langrishe
Irish botanical illustrator and artist
Grania Davis
American SF novelist