Eleanor Matsuura is a Japanese-born British actress. She was born in Tokyo, Japan, but raised in London, England; she is half-Japanese and half-English. She is best known for her roles as Yumiko in The Walking Dead, Hannah Santo in Spooks: The Greater Good, Bev in Utopia, and as PC Donna Prager in Cuffs.

She trained at the Central School of Speech and Drama and graduated in 2004. She worked on stage at the Royal Court Theatre, Old Vic Theatre and several West End theatres. She has also appeared in several British TV dramas, including EastEnders, Thorne, Extras, Holby City, Lead Balloon, Doctor Who and Hustle, as well as British films. She appeared as Isobel in Bull at the Crucible Theatre, Sheffield.