Bruce Lee (Chinese: 李小龍; born Lee Jun-fan, 李振藩; November 27, 1940 – July 20, 1973) was a Hong Kong and American martial artist, martial arts instructor, actor, director, screenwriter, producer, and philosopher. He was the founder of Jeet Kune Do, a hybrid martial arts philosophy drawing from different combat disciplines that is often credited with paving the way for modern mixed martial arts (MMA). Lee is considered by critics, media, and other martial artists to be the most influential martial artist of all time and a pop culture icon of the 20th century, who bridged the gap between East and West. He is credited with promoting Hong Kong action cinema and helping to change the way Asians were presented in American films.

Lee was the son of Grace Ho and Lee Hoi-chuen, a Cantonese opera star based in Hong Kong. He was born in San Francisco in 1940 while his parents were visiting the city for his father's concert tour abroad. The family returned to Hong Kong a few months later. He was introduced to the Hong Kong film industry as a child actor by his father. However these were not martial art films. His early martial arts experience included Wing Chun (trained under Yip Man), tai chi, boxing (winning a Hong Kong boxing tournament), and apparently frequent street fighting (neighbourhood and rooftop fights). In 1959, Lee, having U.S. citizenship due to his birth, was able to move to Seattle. In 1961, he enrolled in the University of Washington. It was during this time in the United States that he began considering making money by teaching martial arts even though he aspired to an acting career. He opened his first martial arts school, operated out of home in Seattle. After later adding a second school in Oakland, he once drew significant attention at the 1964 Long Beach International Karate Championships of California by making demonstrations and speaking. He subsequently moved to Los Angeles to teach, where his students included Chuck Norris, Sharon Tate, and Kareem Abdul-Jabbar. In the 1970s, his Hong Kong and Hollywood-produced films elevated the Hong Kong martial arts films to a new level of popularity and acclaim, sparking a surge of Western interest in Chinese martial arts. The direction and tone of his films dramatically influenced and changed martial arts and martial arts films worldwide.

He is noted for his roles in five feature-length Hong Kong martial arts films in the early 1970s: Lo Wei's The Big Boss (1971) and Fist of Fury (1972); Golden Harvest's Way of the Dragon (1972), directed and written by Lee; and Golden Harvest and Warner Brothers' Enter the Dragon (1973) and The Game of Death (1978), both directed by Robert Clouse. Lee became an iconic figure known throughout the world, particularly among the Chinese, based upon his portrayal of Chinese nationalism in his films, and among Asian Americans for defying Asian stereotypes. Having initially learnt Wing Chun, tai chi, boxing, and street fighting, he combined them with other influences from various sources into the spirit of his personal martial arts philosophy, which he dubbed Jeet Kune Do (The Way of the Intercepting Fist).

Lee died on July 20, 1973, at the age of 32. Since his death, Lee has continued to be a prominent influence on modern combat sports, including judo, karate, mixed martial arts, and boxing, as well as modern popular culture, including film, television, comics, animation and video games. Time named Lee one of the 100 most important people of the 20th century

Bruce Lee's father Lee Hoi-chuen was a famous Cantonese opera singer based in Hong Kong. In December 1939, his parents went to Chinatown, San Francisco in California for an international opera tour. He was born there on November 27, 1940, making him a dual Hong Kong and United States citizen by birth. At four months old (April 1941), the Lee family returned to Hong Kong. Soon after, the Lee family led an unexpected four-year hard life as Japan, in the midst of World War II, launched a surprise attack of Hong Kong in December 1941 and ruled for four years.

Bruce's father, Lee Hoi-chuen, was Cantonese, and his mother, Grace Ho, was of Eurasian ancestry. Lee's maternal grandfather was Cantonese, his maternal grandmother was English and his maternal great-uncle, Robert Hotung, was a successful Hong Kong businessman of Dutch Jewish and Cantonese descent

Lee is considered by commentators, critics, media, and other martial artists to be the most influential martial artist of all time, and a pop culture icon of the 20th century, who bridged the gap between East and West. Time named Lee one of the 100 most important people of the 20th century.

A number of biography books have been written about Bruce Lee. A biography about Lee sold more than 4 million copies by 1988.