A tube holder assembly is provided for securing a medical tube such as an endotracheal tube to a patient. In one illustrative embodiment, the holder assembly comprises a support strap for placement around the patient's head or neck region, a bracket for holding the endotracheal tube in position relative to the patient's mouth, and a face anchoring portion for securing the support strap to the patient's face region. The support strap includes a front surface and an opposed, back surface. The bracket may be attached to the front surface of the support strap. The bracket may include an upper bar and an arm extending from the upper bar. The face anchoring device may comprise a first surface configured to adhere to the patient's face region, and a second, opposed surface having a strap-engaging portion configured to mechanically engage the back surface of the support strap. The support strap may be configured to be repeatedly releasable and adjustable to the face anchoring device.