A refrigerator including an inner case forming a storage chamber, an intermediate partition partitioning the storage chamber in an upper-lower direction, and an evaporator seating part extending in a left-right direction, an evaporator cover to cover the evaporator seating part and formed with a cold air discharge port through which cold air from inside the evaporator seating part is dischargeable to the storage chamber, a first partition fixed to the intermediate partition and a bottom surface of the inner case and including a partition opening communicating with a space between the inner case and an outer case, a partition fixing opening formed in the inner case or the intermediate partition to allow an insulator to pass through the partition opening and the partition fixing opening, and a second partition coupleable to the first partition to divide the storage chamber in the left-right direction.