An oral airway for insertion into the mouth and pharynx of a patient is disclosed and adapted to connect to an anesthesia breathing connector, a suction tube, or a nasal cannula, interchangeably as needed, without necessitating the removal of the oral airway from the patient. A tubular member has a connector at a proximal end and includes a first portion that is adapted for fixing with the anesthesia breathing connector. A second portion of the connector is adapted for receiving the suction tube. At least one protuberance between the first and second portions receives and retains a portion of the nasal cannula, or alternately, at least one aperture is included in the second portion for receiving a portion of the nasal cannula. A mouth guard extends outwardly from the connector. Alternately, a suction tube guide within the tubular member may be slidably positionable between a retracted and extended position.