depends on if you only mean singles play or singles/doubles in toto
A female holds the record for both, considering the "open era" and excluding junior titles
Singles titles -Margaret Court (24 titles)
singles/doubles - Margaret Court (62 titles)
ROGER FEDERER (Switzerland) 16Grandslams
Roger Federer of Switzerland.With this title he has surpassed Pete Sampras' record for the most number of grand slam tiles.Federer has 15 grandslam titles to his name now.
It's rather Bulls or Lakers
Rodger Federer has won the most tennis titles.
The man who won the most tennis titles is Jimmy Connors; won 109 and woman who won the most titles is Margaret Court; won 192 singles titles.
Jimmy Connors has most number of titles of Men's Singles in Tennis. He has109 titles in his name.
UCLA with 11 titles.
The Boston Celtics have the most NBA Championship Title wins with 16 titles.