Jon Rahm Rodríguez (born 10 November 1994) is a Spanish professional golfer who plays on the LIV Golf League. He is a former world number one in the Official World Golf Ranking and has held that position for over 50 weeks during his career. Rahm has won two major championships, the 2021 U.S. Open and 2023 Masters Tournament.

While at Arizona State University, Rahm became the first two-time winner of the Ben Hogan Award as the top collegiate golfer in the United States and was number one in the World Amateur Golf Ranking for a then-record 60 weeks. He turned professional in 2016, and won titles on both the PGA Tour and the European Tour in 2017. He made his debut at the 2018 Ryder Cup, where he defeated Tiger Woods in singles. After winning the 2020 Memorial Tournament, Rahm became the number-one ranked player in the world.

In 2021, Rahm became the first Spanish golfer to win the U.S. Open. He won his second major in 2023 at the Masters Tournament. Later that year, he joined LIV Golf. In 2024, Rahm was ranked the world's second highest-paid athlete by Forbes, with reportedly over $200 million in earnings.

Rahm was born on 10 November 1994 in Barrika, a town in the province of Biscay, Spain, to Angela Rodríguez and Edorta Rahm. Edorta worked in the petroleum industry and Angela was a midwife. Rahm was born with clubfoot; his right foot pointed 90 degrees inwards and he was placed in a cast to straighten it. As a result, his right leg below the knee had less development and grew to be 1.5 cm (0.6 in) shorter than his left leg. Rahm stated in 2021 that his short backswing was a product of his limited right ankle mobility.

Rahm's parents became interested in golf due to the 1997 Ryder Cup held at Valderrama Golf Club in Sotogrande, Spain, where Seve Ballesteros captained the victorious European team. Rahm's father subsequently introduced his sons to the sport. Rahm stated he likely would not have become a professional golfer if not for this. In 2022, he described Ballesteros as a "great hero" of his and said regarding the 1997 Ryder Cup. "I'm here because of that alone, and everything else is down to the path that [Seve] paved for so many of us."

Rahm and his elder brother Eriz first played golf at Club Deportivo Martiartu in Erandio, which was a general sports club. They later joined Larrabea Golf Club in Álava, which was about an hour's drive from their home. Members at Larrabea recalled that Rahm was able to hit the ball over 100 m (110 yd) with a 5-wood by age 8. Aside from golf, he competed in canoeing, football, and the Basque sport jai alai. Rahm was often involved in fights as a child and began training in kung fu, at the encouragement of his mother who practiced tai chi. Inspired by Athletic Bilbao player José Ángel Iribar, Rahm played as a goalkeeper for SD Plentzia up to the under-14 level.

At age 13, Rahm began to focus primarily on golf and received coaching from PGA of Spain professional Eduardo Celles, who instructed Rahm to hit fades instead of high hooks. Celles recalled in 2020 that Rahm had an intense work ethic and an exceptional memory, capable of remembering small details about courses such as the slopes of greens. He won the Spanish Junior/Boys Championship in 2010 by six strokes. Rahm attended Ander Deuna Ikastola in Sopela until age 16, when he transferred to IES Ortega y Gasset, a school in Madrid renowned for its athletes. In 2011, he was part of the Spanish team which won the European Boys' Team Championship, where he defeated Sepp Straka of Austria as part of the final match.

Rahm was recruited by Tim Mickelson to play collegiate golf for the Arizona State Sun Devils at Arizona State University (ASU), beginning in the fall of 2012. Rahm had previously planned to attend the University of San Francisco in 2013. He was persuaded to join ASU after learning that Tim's brother Phil Mickelson as well as Alejandro Cañizares had played for the university, and because his friend Noemí Jiménez was on the women's team at ASU.