The common theory is that the mother is Tenten. However, in a recent promotional image that explains the relationships of all the characters in the movie, Tenten was nowhere to be seen. only Rock Lee was listed as his father and there was no mother listed.It would make sense if Tenten was the mother, after all, the son’s name is Metal, that seems like something a weapons-master like Tenten would name her son. And Look Metal Lee’s Eyes its Similar to Rock Lee and Tenten Eyes. 


  1. Maybe because he’s Rock Lee’s son that is why he is named Metal. An improved Rock Lee maybe? Metal is a far stronger material than a rock, right?