Kaoru Sasajima (笹島 かほる, Sasajima Kahoru, born October 4, 1973) is a Japanese voice actress (seiyuu) and singer from Chiba Prefecture. She is currently freelance and has a commercial association with Kotori Voice. She previously worked for Office CHK and Arts Vision.

She was affiliated with Office CHK until September 30, 2002. After working as a freelancer, she joined Arts Vision in December 2003. On January 31, 2015, she left Arts Vision and became a freelancer again. She is 156 cm tall and has blood type O. Her hobbies and special skills are Japanese drums, tennis, and running.

Kannazuki Honoka and Ruru are aliases Sasajima Kaoru has used when working on adult games/anime.