Jaromír Jágr is a Czech professional ice hockey right winger for and the owner of Rytíři Kladno of the Czech Extraliga (ELH). He previously played in the National Hockey League (NHL) for the Pittsburgh Penguins, Washington Capitals, New York Rangers, Philadelphia Flyers, Dallas Stars, Boston Bruins, New Jersey Devils, Florida Panthers and Calgary Flames, serving as captain of the Penguins and the Rangers, between 1990 and 2018. After leaving the Rangers in 2008, he played three seasons in the Kontinental Hockey League (KHL) with Avangard Omsk. He returned to the NHL in 2011 with the Flyers and remained in the league for seven more years before being assigned by the Flames in 2018 to HC Kladno. Having played in 34 professional seasons (as of 2021) and over 2,000 professional games, Jágr has had one of the longest careers in professional ice hockey history. He is the most productive European player who has ever played in the NHL and is widely regarded as one of the greatest players of all time.

Jágr had the second-most points in NHL history, after Wayne Gretzky. In 1990, at age 18, he was the youngest player in the NHL. Until his transfer, at age 45, he was the oldest player in the NHL, and is the oldest player to record a hat-trick. In 2017, Jágr was named one of the 100 Greatest NHL Players in history.

Jágr was the fifth overall selection in the 1990 NHL Entry Draft. He won consecutive Stanley Cups in the 1991 and 1992 seasons with the Penguins. Individually, he has won the Art Ross Trophy as the NHL scoring champion five times (four times in a row), the Lester B. Pearson Award for the NHL's outstanding player as voted by the NHL Players' Association (NHLPA) three times and the Hart Memorial Trophy as the league's most valuable player once, while finishing second four times.

Jágr is a member of the Triple Gold Club, individuals who have played for teams that have won the Stanley Cup (1991, 1992), the Ice Hockey World Championships (2005, 2010) and the Olympic gold medal in ice hockey (1998). Jágr is one of only two Czech players (the other being Jiří Šlégr) in the Club, achieving this feat in 2005. Jágr was the Czech Republic's flag bearer at the 2010 Winter Olympics. Jágr is also one of only three players from 1981 to 2001 to win the Art Ross Trophy as the leading point-scorer during the regular season; the others are Wayne Gretzky and Mario Lemieux. Jágr has won the award more times than any other non-Canadian player. He is a member of the Czech Ice Hockey Hall of Fame.

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