San Pietro in Selci is a Roman Catholic church located on Via Don Giovanni Minzoni #49 in Volterra, province of Pisa, region of Tuscany, Italy.

A church was initially established by Guiscard, Marquis of Tuscany in 1005, and part of the building we see today dates to the 12th century.

In 1507, Bishop consecrated a reconstruction,[1] but the church sports today a later Baroque facade with statues in tufa of Santi Lino and Giusto by Leonardo Ricciarelli.

The first altarpiece on the left, depicts an Allegory of the Immaculate Conception by Francesco Brini.

In the center, she frees the bindings that tie Adam and Eve with original sin to a leafless tree around which a chimeric snake-figure from the Garden of Eden is coiled.