The former footballer, the only Englishman to score at three different World Cups, from 1998 to 2006, reached the milestone age on Friday.
Birthday wishes have come flooding in from his children; friends including Gary Neville, his wife Victoria Beckham, and her former Spice Girls bandmate Melanie Chisholm.
The soccer star, who captained England on 59 occasions, posted on Instagram, writing he was "very grateful for many things in my life", including his team, charity work, being the Three Lions captain, business and friends.
He added: "But my biggest accomplishment is and will always be my family, my mum and dad who sacrificed so much for me to live my dream of becoming a footballer, my sisters who had to put up with following their brother around in the freezing cold watching me play football and amazing my nan and grandad...
"My wife and best friend of 28 years and my beautiful children Brooklyn, Romeo, Cruz (and) Harper you are the reason I get out of bed each day thank you for making me smile and thank you for making me a better man ... I love you all so much and thank you for making today so special for me ... You are my world."
After a footballing career at Manchester United, Los Angeles Galaxy and Real Madrid, Beckham turned to making his co-owned US team Inter Miami into a success.
Beckham and Victoria, who married in 1999, are also seen as a power couple and starred in the 2023 Netflix documentary Beckham together - which included a viral scene of her discussing class.
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