Christian Harrison (born May 29, 1994) is an American professional tennis player who specializes in doubles. He has a career-high ATP doubles ranking of world No. 11 achieved on February 2, 2026 and a singles ranking of No. 198, reached on July 2, 2018.
Harrison has won four ATP Tour doubles titles, the most significant being a major trophy at the 2026 Australian Open, playing alongside Neal Skupski. He also reached a semifinal at the 2025 French Open, with compatriot Evan King.In mixed doubles, he reached two semifinals in the 2018 and 2025 editions of the US Open, with Christina McHale and Danielle Collins, respectively.
Harrison represents the United States at the Davis Cup.
Christian was coached by his father, Pat Harrison, and attended the IMG Academy in Bradenton, Florida. He is the younger brother of Ryan Harrison.
In July, Christian made it to the quarterfinals of the Lexington, Kentucky Challenger event. Christian was awarded a wildcard into the 2012 US Open to play doubles alongside Ryan Harrison, where they reached the quarterfinals.
Earlier in the year he reached the quarterfinals, semifinals, the final, and won, respectively, the four Futures events in which he participated. He failed to qualify in Indian Wells, losing in the first round of qualifying to Ernests Gulbis, who made a deep run to the fourth round after qualifying. However, he did take a set off Gulbis.
Harrison won his first ATP World Tour match against Alejandro Falla at the BB&T Atlanta Open. He then lost in the next round to John Isner in three tight sets.
Harrison spent 2014 and 2015 recovering from several surgeries.
Harrison reached the final round of qualifying at the 2016 US Open after beating Luke Saville and second seed Konstantin Kravchuk in two three-set matches. He made it into main draw after beating Steven Diez also in three-set match. He was one set down at all three matches in qualifying. He lost in the first round to Paul-Henri Mathieu in straight sets.
He made his Masters 1000 singles debut at the 2017 Miami Open as a qualifier but lost to Dudi Sela in the first round. He received a wildcard to the 2017 US Open where he won his first round match in doubles with partner Christopher Eubanks.
Harrison qualified for the 2021 Delray Beach Open, starting the week ranked No. 789 in the world. He beat number 1 seed Cristian GarÃÂn and advanced all the way to the semifinals, where he was defeated by fourth seed Hubert Hurkacz, who would later win the title. As a result, he climbed 444 positions in the rankings to a World No. 345 ranking on 18 January 2021 and he got five ATP Tour match victories thus far, with three of them in Delray Beach, where he also won two matches in qualifying. He also reached his maiden ATP final in doubles with his brother Ryan Harrison where they lost to Ariel Behar and Gonzalo Escobar. As a result, he returned to the top 250 in the doubles rankings at World No. 229.
He qualified for only the second time at the 2022 Wimbledon Championships and his third Major main draw and won his first match at any Major, defeating wildcard Jay Clarke.
Harrison won his 11th Challenger title in Winnipeg with Cannon Kingsley and fourth of the season, and reached the top 100 in the doubles rankings on 15 July 2024.
Partnering with Rajeev Ram, Harrison reached the doubles final at the 2025 Auckland Classic, but withdrew before the match against Nikola MektiÃÂ and Michael Venus due to Ram suffering an arm injury.
Alongside Evan King, he won his first ATP Tour doubles title at the 2025 Dallas Open, defeating Ariel Behar and Robert Galloway in the final. Within three weeks they lifted their second title, also an ATP 500 in Acapulco, having qualified for the main draw. They defeated fourth seeds Sadio Doumbia and Fabien Reboul 6âÂÂ4, 6âÂÂ0 in a 56-minute final. At the 2025 BNP Paribas Open the pair reached their first Masters semifinal as wildcards with wins over Matthew Ebden and John Peers and seventh-seeded Argentines Maximo Gonzalez and Andres Molteni. As a result Harrison reached a new career-high ranking of world No. 36 on 17 March 2025. At the next Masters in Miami, the pair reached back-to-back quarterfinals upsetting third seeds Simone Bolelli and Andrea Vavassori and as a result he reached the top 30 in the rankings. The pair reached another semifinal at the 2025 Mutua Madrid Open but again lost, this time to the world No. 1 pair Marcelo Arevalo and Mate Pavic. As a result they both reached new career-high rankings in the top 20 in the rankings on 5 May 2025.
Current through the 2026 Indian Wells Open.
Christian has played three seasons with World TeamTennis, making his debut in 2015 with the Boston Lobsters as a substitute. He has since served as a substitute for the Orange County Breakers in 2018 and the San Diego Aviators during the 2020 WTT season played at The Greenbrier.