Grenfell
- Alice Grenfell
- Arthur Grenfell Wauchope
- Bernard Pyne Grenfell
- Bryan Grenfell
- Cecil Grenfell
- Charles Grenfell (1790–1867)
- Charles Grenfell (1823–1861)
- Clarine Coffin Grenfell
- David Grenfell
- Diana Grenfell
- Edward Grenfell, 1st Baron St Just
- Ettie Grenfell, Baroness Desborough
- Eustace Grenfell
- Frances Campbell-Preston
- Francis Grenfell, 1st Baron Grenfell
- Francis Octavius Grenfell
- George Grenfell
- George St. Leger Grenfell
- Gren
- Grenfell (brand)
- Grenfell Campus
- Grenfell Centre
- Grenfell Price
- Grenfell Street
- Grenfell Tower
- Grenfell Tower fire
- Grenfell railway station
- Grenfell, New South Wales
- Grenfell, Saskatchewan
- Helen Loring Grenfell
- Henry Grenfell
- Hubert Grenfell
- Joanne Grenfell
- John Pascoe Grenfell
- Joyce Grenfell
- Julian Grenfell
- Julian Grenfell, 3rd Baron Grenfell
- Maria Grenfell
- Pascoe Grenfell
- Pascoe Grenfell, 2nd Baron Grenfell
- Pascoe St Leger Grenfell
- Peter Grenfell, 2nd Baron St Just
- Stephen Grenfell (broadcaster)
- Stephen Grenfell (footballer)
- Wilfred Grenfell
- William Grenfell, 1st Baron Desborough