Jun Konno is a Japanese voice actor born on October 18, 1975, in Noda, Chiba Prefecture. He is affiliated with the talent agency Mausu Promotion. Konno began his professional voice acting career in 2003 after training at the NHK Promotion Actors Seminar. Over his career, he has been associated with several agencies, including AS Kikaku and Production Baobab, before joining Mausu Promotion in December 2016.

Konno has built a career characterized by a wide range of supporting roles across numerous anime series and video games. One of his most prominent recurring roles is in the long-running franchise Inazuma Eleven, where he voices Asuka Domon across multiple television series, films, and video games. His film credits for the franchise include Inazuma Eleven: Saikyō Gundan Ogre Shūrai. He is also known for voicing Makoto Doumyouji in the mecha anime Linebarrels of Iron and Holy Roman Empire in the animated film Hetalia Axis Powers: Paint it, White!. Other notable roles include Richter in Diabolik Lovers, multiple characters in the Tamagotchi! anime series, and Joshua Edwards in Mobile Suit Gundam 00.

Throughout his career, Konno has demonstrated a strong association with specific franchises. His work on Inazuma Eleven is particularly extensive, where he has lent his voice to numerous characters, including Asuka Domon, Kaiji Hamano, and others in the games and animated adaptations. He also reprised his role as Makoto Doumyouji from Linebarrels of Iron in the video game Super Robot Wars UX. His versatility is further evident in his performance as Tony Stark in the Japanese dub of the animated series Iron Man: The Adventures.

In addition to animation, Konno has been active in video game voice acting, with roles such as Richter in Diabolik Lovers and Randolph in Fire Emblem: Three Houses. He has also contributed to drama CDs, audio books, and the Japanese dubbing of foreign live-action films and television series, including the film Stonewall and the TV series The Flash. His work is marked by a consistent presence in both supporting and recurring roles across a diverse range of popular media.