Hung Ga Kuen (Cantonese) or Hongjiaquan (Mandarin) (Chinese: 洪家拳, meaning "fist of the Hung family") - alternatively shortened as either Hung Ga (洪家) or Hung Kuen (洪拳) - is an ancient southern Chinese martial art, which roots lie in the Southern Shaolin kung fu. During the turn of the 3rd millennium, Hung Ga was one of the most widely practiced styles of kung fu from southern China in the world.

It is best known for its low and stable positions, its powerful attacks mainly developed with the upper limbs, many blocks and also the work of internal energy. Its techniques are influenced by Bak Fu Pai (White Tiger Kung Fu) as well as Fujian White Crane. In addition, the style takes up postures that imitate the other five classic animals of Shaolin quan: the tiger, the crane, the leopard, the snake and the bear, as well as hand forms of the dragon style qi-gong and it's simultaneous double strikes.

Hung Gar Kuen is represented in the world in mainly four family branches; Tang Fung, Lam, Chiu and Lau. What the four have in common is that they have branched out from the most famous Hung Gar master of them all, Wong Fei-hung. Despite differences between these family branches, they strive for the same goal, to preserve one of the richest martial arts from China.

Hung Ga's technique employs the simultaneous use of attack and blocking, where the block is occasionally used as a conjunctive attack on the opponent. For instance, if a Hung Ga practitioner receives a strike to his upper body (or head), they can meet the incoming force with their own block, which is delivered with such force that it will overwhelm the opponent's defensive abilities. The aim is to seriously injure the opponent or inflict such intense pain it will weaken the opponent's retaliation.

The hallmarks of Hung Ga are strong stances, notably the horse stance, or "si ping ma" (四平馬), and strong hand techniques, notably the bridge hand and the versatile tiger claw. ^{[citation needed]}

Traditionally, students spent anywhere from several months to three years in stance training, often sitting only in horse stance from half an hour to several hours at a time, before learning any forms. Each form could then take a year or so to learn, with weapons learned last. In current times, this mode of instruction is generally considered impractical for students, who have other concerns beyond practicing kung fu. However, some instructors still follow traditional guidelines and make stance training the majority of their beginner training.

Hung Ga's earliest beginnings have been traced to the 17th century in southern China. More specifically, legend has it that a Shaolin monk, Jee Sin Sim See (”sim see” = zen teacher) was at the heart of Hung Ga's emergence. Jee Sin Sim See was alive during a time of fighting in the Qing dynasty. He practiced the arts during an era when the Shaolin Temple had become a refuge for those that opposed the ruling class (the Manchus), allowing him to practice in semi-secrecy. When the Shaolin temple was burned down, many fled to the Southern affiliated Shaolin temple in the Fukien Province of Southern China along with him. There it is believed Jee Sin Sim See trained several people, including non-Buddhist monks, also called Shaolin Layman Disciples, in the art of Shaolin Kung Fu.

Of course, Jee Sin Sim See was hardly the only person of significance that had fled to the temple and opposed the Manchus. Along with this, tea merchant Hung Hei-gun also took refuge there, where he trained under Jee Sin Sim See. Eventually, Hung Hei-gun became Jee Sin Sim See's most prodigious student.