Cory James Sandhagen (born April 20, 1992) is an American professional mixed martial artist.

[7] Born and raised in Aurora, Colorado, Sandhagen attended Smoky Hill High School where he was on the basketball team – a sport he had been playing from his youth.

[3][8] Sandhagen made his Legacy Fighting Alliance debut on February 24, 2017, at LFA 5 against Jamall Emmers, losing the bout via unanimous decision.

[11] His next fight was on October 17, 2017, against Luiz Antonio Lobo Gavinho at LFA 24, which he won via first round TKO.

[12] Sandhagen's final appearance for Legacy Fighting Alliance came on January 19, 2018, at LFA 31, defeating Jose Aguayo via first round TKO.

[13] Sandhagen made his promotional debut at UFC on Fox: Jacaré vs. Brunson 2 on January 27, 2018, against Austin Arnett.

[27] Sandhagen was scheduled to face Frankie Edgar in a bantamweight bout on January 25, 2020, at UFC Fight Night 166.

[40] However, Dillashaw announced on April 27 that he had to pull out of the fight due to a cut he received from a headbutt in training.

[41][42] The pairing remained intact and was rescheduled to headline UFC on ESPN: Sandhagen vs. Dillashaw on July 24, 2021.

Sandhagen served as a late replacement for Aljamain Sterling, who was forced to withdraw from the bout with Yan due to a neck injury.

[54] Sandhagen was scheduled to face Umar Nurmagomedov on August 5, 2023 at UFC on ESPN 50 in Nashville, Tennessee.

[55] However, Nurmagomedov withdrew from the event mid-July due to shoulder injury,[56] and was replaced by Rob Font in a catchweight bout of 140 pounds.

[61] Apart from his mixed martial arts career, Sandhagen worked part-time at a trauma center for children.