Melissa Altro (born May 16, 1982) is a Canadian voice actress and voiceover coach from Montreal, Quebec.

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Prior to having a career to voice acting, Altro guest-starred on a 1994 episode of the YTV/Nickelodeon horror anthology series Are You Afraid of the Dark?.^[3] She also starred as Heather in the 1995 film Kids of the Round Table and as Barb in The Woods. Altro is perhaps best known as the voice actor of Muffy Crosswire in the hit television series Arthur, a role she began when she was 12 years-old and has continued into adulthood—the only child voice actress on the show to do so.^[4] She has also voiced her Arthur character in the series Postcards from Buster, and the specials Arthur's Perfect Christmas and Arthur's Halloween. She also has voiced other characters in Arthur,^[5] Altro also provides the voice for Gretchen in the Teletoon/Disney XD animated series Camp Lakebottom.^[6] She has also provides the voice for Pippi Longstocking in the 1997 film and the series of the same name.

Altro is an alumna of St. George's School of Montreal and McGill University, where she majored in English, Drama and Theatre, both located in her hometown.

In 2019, Altro became the announcer of Subway across Canada.