Northeastern Buckeye Conference
The Northeastern Buckeye Conference was an OHSAA high school athletic conference that comprised eight high schools in Carroll, Columbiana, Mahoning and Stark Counties in Ohio that operated from 1989 until 2018.
All Members
| School | Nickname | Location | Colors | Tenure | Notes |
| Alliance | Aviators | Alliance | Red, Columbia Blue | 2005-2018 | Left for EBC |
| Dover | Tornadoes | Dover | Crimson, Gray | 1989-1993 | Left for the ECOL |
| Carrollton | Warriors | Carrollton | Black, White | 1989-2018 | Left for EBC |
| [Canton South High School|Canton, Ohio|Canton South] | Wildcats | Canton | Red and Gray | 1990-2018 | Left for EBC |
| Louisville | Leopards | Louisville | Blue and white | 1990-2018 | Left to Independent |
| Marlington | Dukes | Lexington | Orange, Black | 1989-2018 | Left for EBC |
| Minerva | Lions | Minerva | Crimson, Gray | 1989-2018 | Left for EBC |
| Northwest | Indians | Lawrence | Red, White, & Gray | 1989-2011 | Left to be independent. |
| Salem | Quakers | Salem | Red, Black | 2011-2018 | Left for EBC |
| Springfield | Spartans | Lakemore | Red, Gray | 1993-2005 | Left for the PTC |
| West Branch | Warriors | Beloit | Green, White | 1989-2018 | Left for EBC |
History
The NBC was established in September 1988 and began league play in the fall of 1989. The six founding members were Carrollton, Dover, Marlington, Minerva, Northwest, and West Branch. Due to contractual obligations to the Federal League, Canton South and Louisville could not compete until the following year.Dover, one of the leagues founding members had left for the East Central Ohio League after the 1992-93 school year and was replaced by Springfield in 1993-94.
Springfield left after 11 seasons in the league in 2004-05, for the newly created Portage Trail Conference. Alliance joined shortly after in 2005-06.
In anticipation of having to discontinue sports due to a series of levy failures, Northwest left the conference after the 2010-11 school year. Salem joined the conference as a replacement starting the 2011-12 school year.
In December 2015, discussions began between members of the Northeastern Buckeye Conference to create a new league that didn't include member school Louisville due to their enrollment size compared to the rest of the league. In February 2016, the Northeastern Buckeye Conference officially disbanded, the remaining members in the league at the time voted to form the Eastern Buckeye Conference that would begin play in the fall of 2018.