Amanda Boxer (born 1948) is an English theatre, television, and film actress. She is perhaps best known for her role in the film Saving Private Ryan (1998).

Boxer was born in London, the daughter of English scholar C.R. Boxer and American author Emily Hahn.

Boxer is known for her performances in The Last Days of Judas Iscariot at the Almeida Theatre, Cling to Me Like Ivy at the Birmingham Repertory Theatre, and The Painter at the Arcola Theatre. Her credits include Sense and Sensibility, The Cleopatras, The Gentle Touch, Miss Marple, (Sleeping Murder episode), Between The Lines, Trial & Retribution, Casualty and The Brothers, Boxer played Amanda Trippley in both series of the BBC sitcom Chalk. She also had a role as Mrs. Ryan in Saving Private Ryan, and played the mother of Matt Smith's character in the 2009 short film Together. In January 2020, Boxer appeared in an episode of the BBC soap opera Doctors as Elizabeth Pinfield.