Ikuto Yamashita (山下 いくと Yamashita Ikuto?, born in 1965) is a Japanese male manga artist and designer.
Yamashita was born in the Gifu Prefecture and is a graduate of the Nagoya University Of Arts.
His representative work in manga is "Dark Whisper" (serialized in Dengeki Daioh). In the field of anime, he is the mecha designer in the Neon Genesis Evangelion series and Sentō Yōsei Yukikaze. The designs for Yukikaze were originally drawn as recreation as well as Sentō Yōsei Shōjo tasuke te! Mave-chan.
Besides Evangelion, he has also done mecha designs for other Gainax works including Gunbuster and Nadia: The Secret of Blue Water. He was also the mechanical designer for Blue Submarine 6.