A refrigerator includes a cabinet defining a storage chamber, a first drawer slidably mounted within the storage chamber, the first drawer having a locking portion at an upper side of the first drawer and a recessed guide rail portion that is adjacent the locking portion and extended along a withdrawal direction of the first drawer, a second drawer slidably mounted within the storage chamber, a stopper provided at the second drawer, the stopper being configured to, based on the first drawer being withdrawn from the storage chamber, become locked to the locking portion, and the stopper being configured to, based on the first drawing being inserted into the storage chamber, be slidably accommodated in the guide rail portion such that the first and second drawers are independently movable relative to each other.