There is provided a golf ball retriever that is easy to install and convenient for any golfer, eliminating the need to bend over when retrieving a ball. The ball-retrieval system may be integrated into a golf club shaft or grip portion without interference to use of the golf club. The device can be used with any golf club, such as a putter, to retrieve a golf ball from the ground or within the cup. The system also allows the release of the golf ball after retrieval. The device includes a ball retrieval cup sized and formed of a material to allow it to flex around the diameter of the golf ball and frictionally engage the ball. The cup further allows the ball to be released by the application of a force thereto. A magnetic mounting system attachment to a golf club is provided.