Dog-gone — but not forgotten.

A beloved NYPD canine cop named after a hero detective who was paralyzed in the line of duty has died after a fight with cancer, police said Thursday. He was 7.

The hardworking Dutch Shepherd — named K9 Steven in honor of late Manhattan Detective Steven McDonald — had partnered with officer Joe Brayuha for six years to serve “the city and the country,” the NYPD said on Facebook.

“We regret to announce the passing of K9 Steven, named after the late hero Detective Steven McDonald, after a battle with cancer,” the department wrote.

“K9 Steven & his partner, PO Joe Brayuha dedicated their service as a team to the city and country— including 4 deployments with NY Task Force 1.”

The police pooch — who specialized in search and rescue and disaster recovery — was deployed three times to Florida to help with hurricanes along with a building collapse in Miami. He also aided with a hurricane recovery in Louisiana.

“Steven was just like my father— very happy, and he loved people,” said Lt. Conor Mcdonald, son of the late detective. “My father loved dogs, he always had one growing up. He would’ve loved Steven.”

The dog had a popular Instagram account showing him practicing commands, playing in the snow and sitting adorably at a desk.

The Instagram page frequently paid tribute to McDonald, who died in January 2017 — more than 30 years after he was shot by a teenager while responding to a bicycle theft in Central Park.

McDonald, who also has a street named after him in the park,  suffered a heart attack at age 59 and died at a Long Island hospital.