Bills quarterback Josh Allen, seen out and about in New York City on Thursday night with actress Hailee Steinfeld, has moved on from longtime girlfriend Brittany Williams.

Pictures of Allen and Steinfeld’s night out were obtained exclusively by The Post.

A break-up between the two-time Pro Bowler and Williams has long been rumored, with internet sleuths noting she unfollowed Allen on Instagram in April — as well as seemingly deleting photos of them from her account.

Neither has officially addressed their relationship publicly, though Allen’s night out with Steinfeld seems to do so for him.

Williams and Allen began dating in 2017 as he began to build draft hype at Wyoming, though they had known one another since childhood, with Williams attending a birthday party for Allen’s brother.

“In Fresno, there’s this baseball team, the Fresno Grizzlies (Giants minor-league affiliate) … and so, we specifically remember as 8-year-olds, it was [Allen’s] brother’s birthday,” Williams said on Kelly Stafford’s “The Morning After” podcast. “They rented out the pool area, there’s like a pool in the outfield, and we vividly remember it happening, a ball came over into the pool area. Josh likes to say it’s a home run. I think it was a foul ball or something.

“I think it was Tim Lincecum, I think he was still playing for that team, and he got the ball and it was this big ordeal, and he came and gave me the ball… And I just remember being so embarrassed like ‘oh my gosh, cooties’ … that was like our big, first moment we remember about each other.”

The pair didn’t really pick up steam until college.

She accompanied him to the 2018 NFL Draft, where the Bills made him the No. 7 overall pick.

Since then, Williams, a pilates instructor, had been a staple at Bills games.

The couple were seen smooching during their tropical March vacation, their last known travel together before the breakup rumors began.

In recent weeks, however, Williams appeared to celebrate her birthday without the QB in April — with her cake including the hashtag #MHWN, short for “my husband would never.”

That came months after her last NFL-related message to the 27-year-old pass-thrower, after Buffalo fell to the Bengals in the divisional round of the playoffs in January.

“So proud of this man. You are the most amazing & selfless person I know. Through all the highs of this season and the many, many trials of adversity your team faced, you remained the same & never wavered. A true leader,” Williams wrote.

She appeared to be at Churchill Downs for the Kentucky Derby in May — where Allen also attended and walked the red carpet — though they weren’t photographed together, and it appears they were likely over at that point based on the other social media hints.