Johnson tweeted Sunday that "she said yes!!!" and included a picture of a large diamond ring on the daughter of hockey great Wayne Gretzky. She retweeted it, along with several congratulatory messages from friends and family.
They first were linked at the start of the year when she was in the gallery at Kapalua, where Johnson won the Tournament of Champions. Gretzky and his wife, Janet, joined their daughter the following week in Honolulu at the Sony Open.
Johnson and Wayne Gretzky were partners in the Pebble Beach National Pro-Am.
The 29-year-old Johnson already has seven wins in his first six years on the PGA Tour.
Also on HuffPost