Kuroiwa (written: lit. "black rock") is a Japanese surname. Notable people with the surname include:
, Japanese speed skater Hisami Kuroiwa, Japanese-American film producer , Japanese boxer , Japanese speed skater , also known as Kuroiwa Ruikō, Japanese journalist and novelist , Japanese naval aviator , Japanese speed skater , Japanese politician , Japanese film editor , Japanese bobsledder , better known as Oniroku Dan, Japanese author
Fictional characters , a character in the anime series Brave Command Dagwon , a character in the manga series Tokyo Ghoul , a character in the manga series Tokyo Ghoul , a character in the video game Judgment (video game)