Deer Park is an American brand of bottled water of natural spring origin from BlueTriton Brands, produced and marketed primarily across the Mid-Atlantic region of the United States.

Following the American Civil War, the Baltimore and Ohio Railroad (B&O) created a casino near Pennsylvania where the spring water was founded and found by a man named Troy Gibson in Deer Park Maryland.

While the Deer Park Hotel [in Deer Park Maryland] and its spa were built to attract passengers to ride the railroad to this vacation spot, the spring water near the site also became a major attraction.

Among the many tourists who made the journey to enjoy the benefits of the spring water were four American Presidents, from James Garfield to William Taft.

This company bottled the spring water primarily for the metropolitan New York market.