The Ohio Ag Net is a radio news network in the U.S. state of Ohio. Ohio Ag Net programming is heard on more than 70 radio stations statewide, including the major markets of Canton, Toledo, and Columbus. It is the direct successor to the original Agri Broadcasting Network (ABN.)

The Agri Broadcasting Network (ABN) was founded in 1972 by the late Ed Johnson, President of Agri Communicators Inc., which included the Agri Broadcasting Network (ABN Radio), Ohio's Country Journal, a monthly farm newspaper, and the television program AgriCountry. Johnson, a well-known farm broadcaster formerly of WRFD in Columbus, Ohio, launched the network with a small number of radio stations, and delivered programming over the telephone from his farm in Ostrander, Ohio. His unmistakable enthusiasm, passion for agriculture, and unique broadcast style won a faithful following, and the network grew. The network, by the late 1970s finally leased a land line loop to affiliates which also fed programming from the Ohio News Network and Sports Ohio Network (later ONN Sports). By the mid-1980s, the ABN became a satellite operation.

Adding the television program to his efforts in 1982, Johnson's fame grew from that of a well-respected agricultural journalist to a household name in Ohio. In 1992, he launched the magazine Ohio's Country Journal. The size and scope of the ABN Radio network also grew, expanding to a footprint exceeding 72 radio stations in Ohio, Indiana, and West Virginia.

Following Johnson's death in 2001, the Johnson family sold the ABN to Clear Channel Communications, who moved network operations from Columbus and merged the network and programming into its Lima, Ohio cluster. In early 2007, Advance Broadcast & Communication Ltd, parent company of the Buckeye Ag Radio Network (aka: "the BARN") acquired the ABN, reintroduced Johnson's well-known preference for broadcasting "from the farm," and in early 2009, returned broadcast operations to Columbus.

In December 2010, Advance Broadcast and Communications ceased operations as mentioned on its website (now defunct and now redirects to AndyVance.com).

Lindsay Hill, associate farm director and co-founder of Buckeye Ag Radio Network "The Barn" (and wife of Vance) died in a two vehicle accident at the intersection of Ohio State Routes 235 and 41, just north of New Carlisle and west of North Hampton near Springfield, Ohio on Thursday morning May 19, 2011, while she was a new employee for AgDay, a television program produced by Farm Journal Magazine. Hill began her career as an ABN intern under Johnson's mentoring. Husband Andy Vance began his career at WRFD where Johnson started his.

Following the sale of ABN to Clear Channel, the Johnson family maintained the Country Journal, but Johnson's weekend television program, AgriCountry, which aired on 11 television stations across Ohio, was cancelled. The program aired over 1,000 episodes over its twenty-year run. The Johnson family business, Agri Communicators Inc., continues to publish Ohio's Country Journal, in addition to Ohio Ag Net, a new radio network founded in 2007 under the ownership of Johnson's son Bart and his wife Sheryl Johnson. ABN veteran anchor (and successor to "'ol E.J.") Dale Minyo anchors most of its programming.

Since 2011, Ohio Ag Net now uses the classic seven-note ABN synthesizer logo, played in the style of a banjo.