Shinsuke Nakamura (Japanese: 中邑 真輔, Hepburn: Nakamura Shinsuke; born February 24, 1980) is a Japanese professional wrestler. He is signed to WWE, where he performs on the SmackDown brand.

Nakamura is known for his time in New Japan Pro-Wrestling (NJPW), where he is a former 3-time IWGP Heavyweight Champion, with his first reign coming at the age of 23 years and 9 months; making Nakamura the youngest IWGP Heavyweight Champion. His other accomplishments within the company include winning the 2011 G1 Climax and the 2014 New Japan Cup, and being the final IWGP Third Belt Champion, the final NWF Heavyweight Champion, and the longest reigning IWGP Intercontinental Champion for his first reign (he formerly held the record for most reigns at five). He is also a founding member and the original leader of the stable Chaos.

Prior to his main roster debut in WWE, Nakamura competed in the company's NXT brand, where he became a two-time NXT Champion. In January 2018, Nakamura won the 2018 Men's Royal Rumble match and lost at WrestleMania 34 and later won the WWE United States Championship three times. He won the Intercontinental Championship for the first time in 2019 at Extreme Rules, making him the second wrestler (behind Chris Jericho) to hold both WWE and IWGP Intercontinental Championships. Nakamura is also a former WWE SmackDown Tag Team Champion with Cesaro. From July 2021 to October of the same year, Nakamura dubbed himself King Nakamura due to being in possession of the King of the Ring crown, although he never won the tournament, instead defeating reigning King of the Ring Baron Corbin in a "Battle for the Crown" match. Overall, Nakamura is a five-time world champion in professional wrestling.

Shinsuke Nakamura was born in Kyōtango, Kyoto, on February 24, 1980. As a child, his favorite wrestler was Jushin Liger.

Nakamura joined NJPW in March 2002 and quickly began making a name for himself as a bright prospect for the company. In his debut match on August 29, 2002 he lost to Tadao Yasuda. Having earned the nickname "Super Rookie", Nakamura impressed both NJPW officials and fans with an excellent combination of strength, speed, and technical skill. Alongside fellow rookies Hiroshi Tanahashi and Katsuyori Shibata, Nakamura became known as one of the "new Three Musketeers". Nakamura began training vale tudo and, on December 31, he made his mixed martial arts debut, where he was defeated by Daniel Gracie via submission to an armlock. Nakamura's second MMA fight took place on May 2, 2003, when he defeated Jan Nortje with a guillotine choke. He followed that up on September 13 with another submission victory over Shane Eitner in his third MMA fight. On December 9, Nakamura defeated Hiroyoshi Tenzan for the IWGP Heavyweight Championship, thus becoming the youngest wrestler in history to win the title. On January 4, 2004, at Wrestling World 2004, Nakamura successfully defended the IWGP Heavyweight Championship against the NWF Heavyweight Champion Yoshihiro Takayama in a title unification match. However, Nakamura was forced to vacate the title due to an injury just a month later.

Upon his return, Nakamura received a shot at the title at Nexess on May 3, now held by Bob Sapp, but lost to the defending champion. Later that month, Nakamura competed in his last MMA fight, defeating Alexey Ignashov with a forearm choke on May 22. On December 11, Nakamura and his tag team partner Hiroshi Tanahashi defeated Kensuke Sasaki and Minoru Suzuki in a decision match to win the IWGP Tag Team Championship. On January 4, 2005, at Toukon Festival: Wrestling World 2005, Nakamura defeated his own tag team partner to win the IWGP U-30 Openweight Championship. During their tag team title reign, the two left for an excursion to Mexico, where they feuded with Los Guerreros del Infierno and defended the IWGP Tag Team Championship against Rey Bucanero and Olímpico. On October 30, they lost the IWGP Tag Team Championship to Cho-Ten (Hiroyoshi Tenzan and Masahiro Chono).

At Toukon Shidou Chapter 1 on January 4, 2006, Nakamura challenged Brock Lesnar for the IWGP Heavyweight Championship, but lost. In March 2006, Nakamura announced that he would depart on a learning excursion to further improve his wrestling skills. He would also travel to Mexico, Brazil and Russia and train with Lesnar at Lesnar's personal gym to gain muscle mass. NJPW President Simon Inoki later suggested that as part of his learning excursion, Nakamura would be loaned to World Wrestling Entertainment (WWE) to gain experience in working large American shows. However, it was mostly speculation and never came to pass as Nakamura was urgently needed back in New Japan due to Lesnar's departure.

On September 24, Nakamura made his long-awaited return to New Japan, joining Masahiro Chono's Black New Japan faction, which had the goal of reforming New Japan with Chono as the president and Nakamura as the "ace". Nakamura had greatly improved his muscular mass during his overseas training and also debuted a new finisher, called the Landslide. On December 10, Nakamura was unable to win the IWGP Heavyweight Championship from then-champion Tanahashi and was again unsuccessful on January 4, 2007, at the Wrestle Kingdom in Tokyo Dome show, where he lost to Toshiaki Kawada. Nakamura entered the 2007 G1 Climax tournament, where he reached the semi-finals before dislocating his shoulder. The injury sidelined Nakamura for months, but he made his return on November 11 and took over the leadership of Black New Japan from Chono and reformed the faction under the new name RISE. The faction originally consisted of himself, Minoru, Milano Collection A.T., Hirooki Goto, Giant Bernard, Travis Tomko and Prince Devitt. Low Ki was later added to the stable after Milano was injured, having impressed Nakamura during an appearance when he was still with Impact! Wrestling (formerly TNA). On December 9, Nakamura defeated Togi Makabe to earn an IWGP Heavyweight Championship match at the following month's Tokyo Dome show.