Who are Rock Lee's, Tenten's and Hinata's parents?
We don't have any information about Rock Lee's and Tenten's parents. Neither in manga nor in anime of Naruto. Among the three, Tenten has the least past stories and background information. 

As for Hinata, her father's name is Hiashi Hyuga. The name of Hinata's mother didn't appear in manga or anime. Actually Hinata's mother never appeared in manga, only in anime, so I can't say it is canon.