Conion, also known as Coney Onkyo, was a Japanese audio electronics manufacturer based in Kobe. The company began producing small transistor radios during the 1960s and 1970s before transitioning to boomboxes and receivers in the 1980s, the era for which it is best remembered.

Conion is most associated with large-format portable stereos featuring imposing cabinets, flashy cosmetics, high-wattage amplification, multi-cassette decks, AM/FM radio, detachable speakers, and elaborate VU/LED meters. Iconic models include the C-100F, C-124F, C-126F, TC-999, and the TC-6000 series, which are widely cited among the most collectible boomboxes of the decade. The brand catalogued roughly 40-plus models ranging from compact units to some of the largest portables ever built.

Conion gear holds a strong place in boombox collector culture and in the visual history of 1980s hip-hop and street audio, where oversized ghetto blasters became cultural artifacts. Original units continue to circulate on the vintage electronics market through sites like eBay and collector communities such as WikiBoombox.

Conion has 1 product cataloged on Equipboard, including PA Systems. Their gear is featured by 2 artists, with the strongest followings in Rock and Hip Hop. Notable users include Kid Rock and LL Cool J.