Sergeant Chris Clarke, of the 4th Battalion, The Yorkshire Regiment, was awarded the honour for his contribution to the regiment throughout 2019 and 2020.
Brigadier Andrew Jackson, departing regimental colonel, said: “Sgt Clarke has shown exemplary commitment to the Army Reserve this year, committing many working days, the vast majority of which have been in the field.
"He actively looks for opportunities for arduous challenges and shows high levels of commitment in executing them.”
Sgt Clarke is the first to be awarded the York Medal since it was bestowed on the late Captain Sir Tom Moore last year in recognition of his NHS fundraising efforts.
A probationary firefighter in civilian life, his experiences in the Army Reserves have taken Sergeant Clarke overseas to Denmark, Jordan and Saudi Arabia.
Brigadier Jackson said: “Sergeant Clarke was an invaluable asset on Exercise VIKING STAR in Denmark. He outshone his peers, providing diligent administrative support to the Company Sergeant Major and moral support to all troops.”