Beckham, 40, who has numerous body inks has etched "Buster" on his neck, a moniker that he gave to Brooklyn, reported Ace Showbiz.
The father of four unvieled that body art on his Instagram.
"I've always called Brooklyn ( Buster ) since the day he was born.... Love you Bust @brooklynbeckham," he wrote.
In the past, the former football star dedicated the famous
"99" to wife Victoria Adams to mark the year they got married.
Last month he got "Pretty Lady" inked for his daughter Harper.