There is provided a liquid discharge head including: a nozzle substrate including a semiconductor substrate as a base, a first liquid channel disposed inside the nozzle substrate to communicate with first nozzles, and a second liquid channel disposed inside the nozzle substrate to communicate with second nozzles; first and second energy applying mechanisms; and an electrical element provided on the semiconductor substrate to be electrically connected to the first and second energy applying mechanisms. A first nozzle row and a second nozzle row which extend in a arrangement direction are formed in the nozzle substrate. A length of the first nozzle row in the arrangement direction is longer than a length of the second nozzle row in the arrangement direction.