Stefano Pozzi (9 November 1699 (1707?) — 11 June 1768) was an Italian painter, designer, draughtsman and decorator whose career was spent largely in Rome.
Born in Rome, he was one of four artist sons of his father, an innkeeper: Rocco (1701–74) was an engraver, with whom Stefano worked on occasion; Andrea (1718–69), a carver in ivory; Giuseppe (1723–65) was also a painter. Stefano Pozzi studied in the ateliers of two best followers of Carlo Maratta, that of Andrea Procaccini, who departed for Spain in 1720, and then Agostino Masucci. In 1732 Stefano was admitted to the Pontifical Academy of Fine Arts and Letters of the Virtuosi al Pantheon and became its Regent in 1739. In 1736, he was admitted to the Accademia di San Luca, the artist guild in Rome.
Pozzi worked primarily for Roman churches, painting, for example, the Blessed Niccolò Albergati in a chapel of the Basilica of Santa Maria Maggiore; eight ovals between the windows (c. 1736) for San Silvestro al Quirinale (Titi 1763); the refectory of the Church of San Gregorio Nazareno; a Death of St Joseph (1742) for the third chapel of the Church of Santissimo Nome di Maria (Titi 1763). He frescoed a Sant'Apollinare in Gloria in the vault of the church of Sant'Apollinare alle Terme, which was rebuilt by Ferdinando Fuga and rededicated in 1748. Among the flock of artists who worked on the Chapel of Pope Sixtus V, he contributed figures of angels in the spandrels of arches (Titi 1763).
In Perugia he frescoed the sacristy of the Chiesa del Gesù.
In 1744 he was summoned to Naples by Cardinal Giuseppe Spinelli to decorate the apse of the Cathedral restored by Paolo Posi; for the right wall he painted the large oil of SS Januarius and Agrippino Driving out the Saracens (still in place) and on the vault, a fresco of a choir of Angels (still in place).
In subsequent commissions, he worked with the architect Luigi Vanvitelli: in 1744 he produced two paintings for the Montemorcino monastery that Vanvitelli had built for the Olivetans at Perugia (now the Palazzo dell’ Università): an Annunciation (still in place) and the Blessed Bernardino Tolomei among the Plague-stricken (Santa Francesca Romana in Rome). For the library that Luigi Vanvitelli designed for the Palazzo Sciarra–Colonna in Rome, Pozzi painted allegories of the Signs of the Zodiac, and in Palazzo Doria-Pamphilj he decorated the Saletto degli Specchi.
The picture  Madonna surrounded by angels and clouds has been recently attributed to him by Dr. Stella Rudolph.
Pozzi died in Rome in 1768.
- He engraved the masterful map of Rome by Giambattista Nolli, 1748, with its rich enframement, minute views of monuments, and allegories and cavorting putti. 
- They were jointly responsible, for example, for the allegorical frontispiece, doubtless drawn by Stefano, to Francesco Bianchini's astronomical work, Hesperi et Phosphori nova phaenomena sive observationes circa planetam Veneris Rome 1728 
- Chris Nyborg, "Sant'Apollinare alle Terme"; Titi 1763.
- Riccardo Cigola, "Palazzo Doria-Pamphilj".
- Filippo Titi, Descrizione delle Pitture, Sculpture e Architetture esposte in Roma... (Rome 1763)