The National Collegiate Athletic Association (NCAA) Division I Football Championship Subdivision (I FCS) includes 128 teams. Each team has one head coach. As of the upcoming 2023 season, Division I FCS is composed of 13 conferences: the Big Sky Conference, the Big South–OVC Football Association, CAA Football, Ivy League, Mid-Eastern Athletic Conference (MEAC), Missouri Valley Football Conference (MVFC), Northeast Conference (NEC), Patriot League, Pioneer Football League, Southern Conference (Southern, or SoCon), Southland Conference, Southwestern Athletic Conference (SWAC), and United Athletic Conference (UAC).
The two newest conferences—officially considered by the NCAA to be alliances between all-sports conferences instead of conferences in their own right—are the Big South–OVC and UAC, both of which start play in 2023. The former combines most of the football membership of the Big South Conference and Ohio Valley Conference. The latter is a merger of the preexisting football leagues of the ASUN Conference and Western Athletic Conference, replacing a football alliance between the two conferences. Due to an NCAA moratorium on the establishment of new single-sport conferences, that organization denied a request by the UAC to be considered as an official conference.
In the 2023 season, all schools except Kennesaw State are members of one of these conferences. Kennesaw State, a full member of the ASUN Conference, is not participating in the UAC. It started a transition to Division I FBS in July 2023 in advance of its 2024 move to Conference USA.
As of the start of the 2023 season, the longest-tenured coach in Division I FCS is expected to Jim Parady of Marist, who has been head coaches at Marist since 1992. In all, 26 FCS programs had new head coaches in 2023.
Conference affiliations are current for the upcoming 2023 season. One future FCS team has hired its head coach; that team is indicated with a light blue background.