Bright line (disambiguation)

A bright-line rule is an objective legal standard that does not allow courts to weigh other factors.

Bright line may also refer to:


 * Brightline, a rail system in Florida, USA
 * Brightline West, a future rail system in the Western US
 * Bright railway line, a defunct rail line in Australia
 * A Spectral line
 * Emission spectrum of a chemical or atom