Kung Fu is any martial art form which is originated from China, whereas Taekwondo is a Korean martial art form.

Kung Fu refers to any martial art form, belonging to China, whereas Karate refers to a Japanese martial art form.

The two martial art forms differ in their origins. Taekwondo is a modern Korean martial art and a combat sport, whereas, Karate is a Japanese martial art form, generally practiced from sports perspective.

Origin wise, Taekwondo is a Korean martial art form, and Aikido is a Japanese martial art form.

Taekwondo is a Korean martial art form, whereas Kickboxing is a Japanese martial art as well as a combat sport form.