Boston Celtics Honoring Bill Russell With New Uniforms

The Boston Celtics came up with a special way to honor Bill Russell this season ... with the late Hall of Famer getting a tribute on the team's alternate jersey.

The Cs made the announcement on Monday via IG with photos of Jaylen Brown, Jayson Tatum, Al Horford, and Grant Williams rockin' the new gear -- and they're pretty dope.

The jerseys are dark green, black, and gold featuring 11 gold diamonds on the sides ... to symbolize the number of NBA championships Russell had won during his career.

There's also another set of 11 gold diamonds surrounding Russell's No. 6 jersey number on the waistband ... and the new scripted Celtics wordmark was inspired by Slade’s Bar & Grill, a spot that was owned by Russell in the 1960s.

The Celtics also shared a tribute video of the jersey release ... showing throwback highlights of Russell and what he meant not only to the NBA but to the world.

"Paying homage to a true champion," Celtics said in the caption, "and the Gold Standard of what it means to be a Celtic ☘️."

FYI, Russell -- who played center for the C's from 1956 to 1969 -- helped design the city edition unis with the team before he passed this July at the age of 88.

The Celtics will wear the tribute gear 11 times this year -- another homage to his title wins -- and will start with their season opener against the 76ers on Tuesday.