Passion flower most commonly refers to Passiflora, a genus of flowering plants.

Passion Flower may also refer to:

• Dolores Ibárruri, known as "La Pasionaria" (English: "the Passionflower")
• The Passion Flower (1912 film), a short starring Laura Sawyer
• Heart of Juanita, also known as The Passion Flower, a 1919 film starring Beatriz Michelena
• The Passion Flower, a 1921 film featuring Norma Talmadge
• Passion Flower (1930 film), starring Kay Francis
• Passionflower (1952 film)
• Passionflower (2011 film), a Canadian film from 2011
• "The Passion Flower", a song by Irving Berlin
• Passion Flower, a novel by Kathleen Norris and the basis of the 1930 film
• Passion Flowers, a book by Annah Robinson Watson
• "Passion Flower", a 1971 song by the rock band Stoneground