| Papal conclave August–September 1644 | |
|---|---|
| Dates and location | |
| 9 August – 15 September 1644 Apostolic Palace, Papal States | |
| Key officials | |
| Dean | Marcello Lante della Rovere |
| Sub-dean | Pier Paolo Crescenzi |
| Camerlengo | Antonio Barberini |
| Protopriest | Luigi Capponi |
| Protodeacon | Carlo de’ Medici |
| Election | |
| Vetoed | Giulio Cesare Sacchetti |
| Elected pope | |
| Giovanni Battista Pamphilj Name taken: Innocent X | |
 | |
The 1644 papal conclave was called upon the death of Pope Urban VIII. It lasted from 9 August to 15 September 1644; the cardinal electors chose Cardinal Giovanni Battista Pamphili, who took office as Pope Innocent X.