Perfect Nanny or The Perfect Nanny may refer to:
- The Perfect Nanny, an alternative title of the novel Lullaby by Leïla Slimani
- Perfect Nanny (film), a 2019 French film based on the novel
- The Perfect Nanny (TV series)
- "The Perfect Nanny" (song), a song from Walt Disney's 1964 film Mary Poppins
- The Perfect Nanny (film), a 2001 American television film