Brash may refer to:

Brash (surname), including a list of people with the name Brash, a term applied to some accumulations of fragments: the loose rubble found in the lowest layer of the soil an accumulation of drift ice fragments Water brash, hypersalivation secondary to gastroesophageal reflux disease Brash Entertainment, a video game company Thomas Brash Morison (1868-1945), Scottish politician and judge Olof the Brash

See also Brasch Brasher (disambiguation) Brash Island in Antarctica