Paul John Weitz (born 1965, New York, New York) an Academy Award-nominated screenwriter and director.

Weitz is the son of the actress Susan Kohner and novelist/fashion designer John Weitz. Paul Kohner and Mexican actress Lupita Tovar are his grandparents.

Growing up in New York City, he attended The Allen-Stevenson School and later Collegiate. Then, he graduated from Wesleyan University, where he wrote the play Mango Tea. The play was performed off-Broadway.