|Title||Lab Member No. 001|
|Also Known As||Hououin Kyouma|
|Birthday||December 14, 1991|
|Height||177 cm (5'10")|
|First Appearance||Higurashi no Naku Koro ni Mei|
|Portrayed By||Mamoru Miyano|
Rintaro Okabe (岡部 倫太郎, Okabe Rintarō) is a character from Steins;Gate, the second entry in 5pb.'s and Nitroplus's Science Adventure franchise. He appears in Higurashi no Naku Koro ni Mei as part of a crossover event.
A self-proclaimed mad scientist, Okabe and his team managed to create a VR machine that allows them to freely enter the world of video games. They use the machine to enter the game Higurashi no Naku Koro ni, leading them to Hinamizawa.