Denise Oliver is a Canadian voice actor, voice director, and voice acting coach based in Toronto, Ontario. She was born on August 15, 1979. Oliver studied theater at the Université de Moncton in New Brunswick, where she earned a Bachelor of Dramatic Arts degree.

Oliver began her career in children's television as an on-air host on the Treehouse TV network, playing a character named Rosabelle. This role led to her voicing promotional spots for the channel, which marked her entry into voice acting. She is perhaps best known for providing the English voice of Yu Tendo, a recurring character who first appears in Beyblade: Metal Fusion and continues in Beyblade: Metal Masters and Beyblade: Metal Fury. Yu is a former member of the Dark Nebula organization who becomes a friend to protagonist Gingka Hagane and later joins the Japanese representative team, Team GanGan Galaxy.

Beyond her work on the Beyblade franchise, Oliver has voiced numerous characters in animated series produced in Toronto. Her notable roles include Maurecia in Wayside, Mina Beff in Grojband, Kitty Ko in Sidekick, Gwyneth in Looped, Sue Donym in the 2015 version of Inspector Gadget, Queen Truefin and Citrine Goldenbraid in Mysticons, Mama Muzzywump in Esme & Roy, Mrs. Comet in Dot., Patty in Fangbone!, Princess Perky in Arthur, Hazel in My Friend Rabbit, Heidi and Freeze Louise in Hero Elementary, Phoebe in Go Away, Unicorn!, and Jilly in The ZhuZhus. More recent roles include Gatita and Liz Fuentes in Rosie's Rules, as well as voicing the Breezies in My Little Pony: Make Your Mark.

Oliver has frequently collaborated with Canadian animator Todd Kauffman, appearing in his shows Sidekick, Grojband, and Looped. In addition to her performance work, she serves as a casting and voice director for various animated series and has worked with多家 production companies including Headspinner Productions, Fresh TV, Brown Bag Films, Spin Master Entertainment, and Sinking Ship Entertainment. She also offers workshops and private coaching for voice actors, with particular focus on supporting child actors and their families. Her two daughters, Abigail and Grace Oliver, are also voice actors.