Tomoko Kobashi is a Japanese voice actress born on December 24, 1980, in Okayama Prefecture, Japan. She began her career as a voice actress as an adult and was formerly affiliated with the talent agency Ken Production.

Kobashi has provided voices for a variety of characters across numerous anime television series. One of her notable roles is Malm Tatsuno, known as Zoe Drake in the English adaptation, in the 2007 anime series Dinosaur King. Her filmography also includes the role of Mieko Yunoki in the 2006 series Bartender and Maya Wei in Ōban Star-Racers. In 2009, she voiced Mū-Chan in A Certain Scientific Railgun. She has also taken on various supporting roles in series such as The Legend of the Legendary Heroes, where she voiced a young Sion Astarl, and Guilty Crown, among others.

Starting in 2013, Kobashi became involved with the Pokémon anime franchise during the XY series, where she took over the role of Sophie, Professor Sycamore's assistant. Her other credits include guest roles in series like Gintama and Devil May Cry.