Morihei Ueshiba, Japanese martial artist, developed aikido (died 1969)

Morihei Ueshiba was a Japanese martial artist and founder of the martial art of aikido. He is often referred to as "the founder" Kaiso (開祖) or Ōsensei (大先生/翁先生), "Great Teacher".

Aikido is a modern Japanese martial art which is split into many different styles including Iwama Ryu, Iwama Shin Shin Aiki Shuren Kai, Shodokan Aikido, Yoshinkan, Renshinkai, Aikikai, and Ki Aikido. Aikido is now practiced in around 140 countries.