Gerb may refer to:

• Gerb (pyrotechnic), a standard pyrotechnic device

• GERB, a Bulgarian political party

• Geostationary Earth Radiation Budget, a satellite instrument

• Yarden Gerbi (born 1989), nicknamed "Gerb", Israeli judoka

• Gerb, Catalonia, site of an 11th-century castle built by Ermengol IV, Count of Urgell

• Gerb, a race in the Star Wars universe