A bathroom rack may include a main body and at least two positioning units. The main body has a hanging portion at a rear portion thereof. Each of the positioning unit has a connecting head, a screw, and a cover. The connecting head has a first end and a second end, and the second end has a threaded connecting section. The cover has an inner hole that has a threaded connecting portion corresponding to the connecting section. A notch is formed at a periphery near a center portion of the positioning unit, and a locking hole toward the direction of the first end is located at a rear end of the notch, and the main body is configured to horizontally slide into the notch of the connecting head through the hanging portion to engage with the connecting head.