Old Mill Senior High School in Millersville competes as the Patriots. Its championship history includes state baseball titles in 1980, 1989, 2003 and 2019, football championships in 2009 and 2011, a unified bocce title in 2022 and a long run of girls basketball championships that includes 1986 and three consecutive crowns from 1991 through 1993. Notable athletic alumni include Major League Baseball All-Star pitcher Josh Hader, former NFL defensive back Kevin Barnes, former NFL safety Josh Furman and professional boxer Nick Kisner.
Old Mill Senior High School Coed Varsity Cross Country will compete in the 2026 AACPS County Championships on October 24 at Annapolis High School, with several invitational and intercounty meets leading up to the event.
Old Mill Patriots boys varsity soccer team will host Crofton High School on October 15, 2026, in Millersville at 7 p.m.
Old Mill Patriots girls varsity soccer team will host a scheduled match on October 15, 2026, at Old Mill Senior High School in Millersville, MD, kicking off at 5:00 p.m.
Old Mill Patriots boys varsity football will meet Severna Park Falcons on October 9, 2026, at Severna Park High School in Maryland.
