Abstract: This invention, titled Paraboloidal Drinking Fountain Attachment, provides a novel means for redirecting a stream of water from a faucet into an arc convenient for drinking. The invention is for use with a movable faucet and, when provided with an extension, also can be used with a stationary faucet. The small device, which can be molded inexpensively of a suitable plastic, incorporates a suction cup for easy attachment to any wall or to the floor of a sink within the arc of the faucet. The unique shape of the inner surface of the device, which may be a paraboloid, or a cone modified with a rounded bottom, or a truncated hemisphere, redirects the water stream of the faucet in a graceful and coherent arc. The shape enables users, by adjusting the position of the device relative to the faucet stream, to control the height and diameter of the drinking arc and also to aim it in any direction desired.