The Oratory of Sant'Antonio da Padova (St Anthony of Padua) is a small church on Via Tommaso Pendola (formerly Via delle Murella) in Siena, Italy.

The oratory is property of the "Ward of the Turtle" or Contrada della Tartuca, and now commonly called Sant'Antonio alle Murella.

Siena also has a separate church of Sant'Antonio da Padova located elsewhere in the city in the Contrada della Civetta.

The lateral altars were built in the late 1700s by the local sculptor Gaspero Fineschi and decorated by the stucco artist Bernardino Cremoni.

The interior includes four oval paintings by members of the Mazzuoli and Nasini family: The main altarpiece depicts the legendary miracle when St Anthony of Padua restores an amputated leg (Guarigione della gamba staccata).