The 2018 Oklahoma State Cowboys football team represented Oklahoma State University in the 2018 NCAA Division I FBS football season. The Cowboys played their home games at the Boone Pickens Stadium in Stillwater, Oklahoma and competed in the Big 12 Conference. They were led by 14th-year head coach Mike Gundy. They finished the season 7–6, 3–6 in Big 12 play to finish tied for seventh. They were invited to the Liberty Bowl where they defeated #24 Missouri 38-33, ending the season with a 4-1 record against teams in the top 25.