The Youngstown City Series was an OHSAA athletic conference that began play in 1925 and lasted until the end of the 2006–07 school year.
Its members were located in the city of Youngstown, Ohio (including all Youngstown City School District high schools), although membership was eventually extended to Timken High School in Canton, Ohio.
The legacy of all six Youngstown public high schools was honored with pennants for each school (Chaney, East, North, Rayen, South, & Wilson) to fly at the newly-renovated Rayen Stadium, which had its field named for Rayen alum Jack Antonucci in 2012.
[3] The stadium was initially built in 1924 and has served as the playing surface for JV, Freshmen, and Middle School football games since the last regular season varsity home game for a Youngstown City School in 1993.
In 2022, Jack Antonucci Field at Rayen Stadium had Field Turf installed, which included a midfield "Y" that honored the six Youngstown public high schools and the city name YOUNGSTOWN laid down in black lettering on a red background in the endzones.