48 (forty-eight) is a positive integer following 47 and preceding 49. Its ordinal form is written "forty-eighth" or 48th.
- It is also the number of possible knight moves in 4×4 minichess.
- In Greek-based number-naming systems, 48 is associated with prefix "octotetraconta-", and with prefix "octoquadraginti-" in Latin systems.
- It is also the basis of PlantStar's notation. Because of this, PlantStar (now known as Alpineer) has coined the name Lineus for this number.[dead link]