Nicholas James Bollettieri (born July 31, 1931) is an American tennis coach.
He pioneered the concept of a tennis boarding school, and helped develop many leading tennis players during the past decades, including Andre Agassi, Jim Courier, Monica Seles, and Mary Pierce.
He has also worked with Maria Sharapova, Daniela Hantuchová, Jelena Jankovic, Nicole Vaidišová, Sabine Lisicki, Sara Errani, Tommy Haas, Max Mirnyi, Xavier Malisse, Venus Williams, Serena Williams, Martina Hingis, Anna Kournikova, Marcelo RĂos, Kei Nishikori.
Bollettieri has also been a tour traveling coach, for the last time with Boris Becker for two years.He has been mentioned and profiled in a few television series and documentary films, including Jason Kohn's documentary film Love Means Zero, which was premiered at the 42nd Toronto International Film Festival on September 9, 2017.