Abstract: The drainage bag carrier comprises a long, flattened envelope made of breathable fabric suspended from an elastic, releasable waistband. The envelope is attached to the waistband by hook and loop fasteners to allow adjustment of the length of the envelope hanging from the waistband. The drainage bag is inserted into the envelope through a slot in the outer side of the envelope, which faces outwardly from the wearer's leg. Fastening means are provided to support the drainage bag within the envelope--either medical rivets for disposable-type bags or hook and loop straps for reusable-type bags with side loops. On the inner side of the envelope, which is worn immediately adjacent to the wearer's leg, a support sleeve is placed around the leg to hold the envelope against the leg. The location of the support sleeve with respect to the drainage bag is adjustable along the length of the envelope. The envelope has pleats between the outer side and the inner side to permit expansion of the bag within the envelope.