Who's That Knocking at My Door
- Tahun: 1969
- Negara: United States of America
- Aliran: Drama, Percintaan
- Studio: Trimod Films
- Kata kunci: italian american, catholic guilt
- Direktur: Martin Scorsese
- Pemeran: Harvey Keitel, Zina Bethune, Anne Collette, Lennard Kuras, Michael Scala, Harry Northup