Abstract: The Ostomy bag with gas check valve and water bottle connection is constructed of an impermeable bag that is further defined with a tapered design. A bottom portion of the impermeable bag includes an outlet from which the contents of the impermeable bag may be selectively released. The impermeable bag also includes a stoma port on a side surface, which is adapted to make fluid connection with a stoma of an end user. The impermeable bag is further defined with a top ridge that is distally opposite of the bottom portion. Located along the top ridge of the impermeable bag is a gas check valve, and which is adjacent to a water bottle connection.