Lightwood
- Acacia implexa
- Alec Lightwood
- Brainard Cheney
- Fatwood
- Isabelle Lightwood
- Lightwood Hoard
- Lightwood Reservoir
- Lightwood's law
- Lightwood, Derbyshire
- Lightwood, Ditton Priors
- Lightwood, Hinstock
- Lightwood, Staffordshire Moorlands
- Lightwood, Stoke-on-Trent
- Lightwood–Albright syndrome
- List of The Mortal Instruments characters
- Ray Lightwood
- Simon Lightwood