Birthday blues.

Brooklyn Beckham snubbed his dad David Beckham’s 51st birthday on social media — just weeks after he also ignored his mom Victoria Beckham’s big day.

As the former soccer pro celebrated another year around the sun Saturday, Brooklyn and his wife, Nicola Peltz, remained radio silent about David online.

The former athlete was showered with birthday tributes from his other three children — Romeo, 23, Cruz, 21, and Harper, 14 — as well as the ex-Spice Girls singer.

“Happy Birthday ✨💫✨💫 we love you so much!! 🐔🐓🐔🐓🐓🐔🐓🐔@davidbeckham,” Victoria captioned her post alongside a video of David with his new chickens.

In a separate post, the “Wannabe” singer, 52, wrote that her husband was their “world” and their “everything.”

“We love you so much!!! Happy birthday to the best husband, daddy, son, brother, and friend. To the kindest most generous soul. We will spoil you all day!!!! Nobody deserves it more than you xxx ♥️♥️♥️♥️♥️♥️,” she added.

In response to all of the heartfelt messages, David wrote that he was “very lucky & blessed to have had a very special day today being spoilt by my wife, kids, family and friends from the moment I opened my eyes till now.”

“I just want to say thank you and I love you all so much 🩷🩷🩷🩷🩷🩷 @victoriabeckham & my beautiful family thank you 🩷,” he added in his Instagram caption.

Page Six has reached out to reps for both Brooklyn and David but did not immediately hear back.

Last month, the aspiring chef, 27, also snubbed his mom Victoria’s birthday online.

Brooklyn neglected to share anything about the fashion designer online while his siblings and dad gushed over her.

Page Six previously reported last month that the Beckhams will “never give up hope” of reuniting with their eldest son.

We’re also told that the famous couple is shocked and “saddened” that the freeze-out has lasted this long.

In January, the Beckham family drama exploded when Brooklyn took to social media to declare that he did not want to reconcile with his family.

In the statement, the former photographer claimed his parents, David and Victoria, were trying to sabotage his marriage to Peltz, 31.

Brooklyn alleged the former pop star “hijacked” his and the “Bates Motel” actress’s first dance at their 2022 wedding and “cancelled making Nicola’s dress in the eleventh hour.”

Brooklyn instructed his parents to only contact him through his lawyer.