Grand Slam (tennis) champions in boys' doubles

Roger Federer (born 8 August 1981) is a Swiss professional tennis player who is ranked world No. 3 in men's singles tennis by the Association of Tennis Professionals (ATP). He has won 20 Grand Slam singles titles—the most in history by a male player—and has held the world No. 1 spot in the ATP rankings for a record total of 310 weeks (including a record 237 consecutive weeks) and was the year-end No. 1 five times, including four consecutive. Federer, who turned professional in 1998, was continuously ranked in the top ten from October 2002 to November 2016.

Mark Anthony Philippoussis ( FIL-ih-POO-sis; born 7 November 1976) is an Australian retired tennis player of Greek and Italian descent. He turned professional in 1994. His greatest achievements are winning two Davis Cup titles with Australia in 1999 and 2003, winning the deciding rubber in the final of each. He also reached the finals of the 1998 US Open and the 2003 Wimbledon tournaments, losing to countryman Pat Rafter and Swiss Roger Federer respectively. He reached a career-high singles ranking of world No. 8.

Nicholas Hilmy "Nick" Kyrgios (/ˈkɪəriɒs/ KEER-ee-os; born 27 April 1995) is an Australian professional tennis player. He won the boys' singles event at the 2013 Australian Open and the boys' doubles event at the 2013 Wimbledon Championships. Kyrgios's biggest achievements to date are reaching the quarterfinals of the 2014 Wimbledon Championships, defeating ATP number 1 Rafael Nadal and Richard Gasquet en route, and the quarter finals of the 2015 Australian Open where he lost to Andy Murray in straight sets.

Athanasios "Thanasi" Kokkinakis ( thə-NAH-see KOK-in-AH-kiss; Greek: Αθανάσιος "Θανάσης" Κοκκινάκης; born 10 April 1996) is an Australian professional tennis player and a doubles specialist. He has been ranked as high as world No. 69 in singles by the ATP, which he first achieved on 8 June 2015. He has won one ATP Tour title in singles and produced his best Major singles performance at the 2015 French Open by reaching the third round. Kokkinakis also has a career-high doubles ranking of world No. 15 which he attained on 21 November 2022 after winning the 2022 Australian Open and reaching the semifinals of 2022 Miami Open with countryman Nick Kyrgios.

Goran Ivanišević (born 13 September 1971) is a Croatian former professional tennis player and current tennis coach. He is the only person to win the men's singles title at Wimbledon as a wildcard. He achieved this in 2001, having previously been runner-up at the championships in 1992, 1994 and 1998. Before the 2001 tournament, he was ranked 125th. He then moved part-time to Bathurst, NSW, Australia and after his victory he was 16th. His career-high singles ranking was world No. 2 (behind Pete Sampras) in 1994. He coached Marin Čilić from September 2013 to July 2016, leading Čilić to his biggest achievement to date, the 2014 US Open title.

Márton Fucsovics (Hungarian: Fucsovics Márton, born 8 February 1992) is a Hungarian professional tennis player. He achieved a career-high ATP singles ranking of No. 31 on 4 March 2019. He is currently the No. 1 Hungarian player.

Tomáš Berdych (born 17 September 1985) is a Czech former professional tennis player. His most notable achievement was reaching the final of the 2010 Wimbledon Championships, causing consecutive upsets by defeating top seed and six-time champion Roger Federer in the quarterfinals, and No. 3 Novak Djokovic in the semifinals. In the final, he lost to Rafael Nadal in straight sets. Berdych's biggest career win was the Paris Masters in 2005 as an unseeded player, defeating Ivan Ljubičić in the final.

Rodney George Laver AC MBE (born 9 August 1938) is an Australian former tennis player. He is widely regarded by many pundits, players and fans to be one of the greatest tennis players of all time. Laver was ranked world No. 1 in nine different years, which is an all-time record in tennis. He was the No. 1 ranked professional from 1964 to 1970, spanning four years before and three years after the start of the Open Era in 1968. He also was the No. 1 ranked amateur in 1961–62. He is the second and last male player to win each grand slam twice after Roy Emerson.

Jürgen Melzer (born 22 May 1981) is an Austrian professional tennis player. He reached a career-high singles ranking of world No. 8 in April 2011, and a doubles ranking of world No. 6 in September 2010. He is a left-handed tennis player, but is right-handed in everyday life. He has a younger brother, Gerald Melzer, with whom he has played doubles in several tournaments.

Guillermo Pérez Roldán (born 20 October 1969) is a former professional tennis player from Argentina.