Washington Football Team head coach Ron Rivera just finished his last round of cancer treatments … and the mini-party hospital staffers threw for him to celebrate was AWESOME.

The 58-year-old was diagnosed with a form of skin cancer back in August … and he’s been receiving chemotherapy and other forms of treatment ever since.

But, Rivera completed his last round of treatments Monday … and the scene afterward at the hospital was pretty emotional.

Check out the footage WFT posted … Rivera was cheered on by a bunch of medical personnel — with some even throwing confetti over his head!

Others, wearing “Rivera Strong” shirts, waved pom poms … and eventually, they all gifted him with a signed card.

The best part of the footage, though? Rivera was able to ring a bell on the wall signifying the end of treatments — and you can tell, he was happy as hell to do it.

Rivera has said the cancer drugs have taken a massive toll on him over the past couple months … explaining the fatigue he’s experienced has felt like a “300-pound gorilla on your back.”

Still, Ron only missed a handful of WFT practices and never missed a game … despite at times appearing to be in rough shape.

Rivera has said repeatedly his long-term prognosis is good … adding his doctors are optimistic about a full recovery.