No, Mia Thermopolis's father, Philippe Renaldi, is not still alive.
The Fate of Philippe Renaldi
Mia's father, Philippe Renaldi, who had divorced her mother years ago but still maintained contact with Mia, tragically died in a car crash. This event occurred two months before Mia, a fifteen-year-old private school student, discovers significant changes in her life.
Philippe's passing is a foundational element in The Princess Diaries narrative, directly influencing Mia's journey.
