Keiichi is a masculine Japanese given name. Notable people with the name include:
, Japanese photographer , Japanese manga artist , Japanese diplomat , Japanese music director , Japanese molecular biologist , Japanese butterfly swimmer , Japanese photographer , Japanese Paralympic swimmer , Japanese voice actor , Japanese voice actor , Japanese voice actor , Japanese music producer , Japanese music composer , Japanese film director , Japanese shogi player , Japanese light novel author , Japanese voice actor , Japanese music composer , Japanese speed skater , Japanese artist , also known as the Drift King, Japanese racing driver , Japanese video game designer , Japanese sound designer
Fictional characters , a character in the sound novel Higurashi no Naku Koro ni , a character in the manga series Oh My Goddess! , a character in the manga series Junjo Romantica , a character in the manga series Imawa No Kuni No Alice