Chiesa di San Jacopo in Acquaviva (Church of San Jacopo in Acquaviva), Livorno

Chiesa di San Jacopo in Acquaviva, or the Church of San Jacopo in Acquaviva, is a church located in the Piazza San Jacopo. It is a well-known and oft-photographed church in the city due to its location on the seaside.

The church history dates to at least 1163 though many believe it is much older. It is said that the name Acquaviva was given to the church as a spring of fresh water once flowed through the area. The spring no longer exists and verification of it has not yet been found.

The existing church was built in 1606 at the sight of the old church. A 1716 excavation uncovered the ancient church, which was restored and consecrated the following year. The church underwent remodeling in the late 19th century when a bell tower and new facade were added. The remodeling gave the church a neo-Renaissance style.

A small cemetery once existed next to the church. This was demolished to make way for expansion in the early 20th century. The church is also home to a monument to Pietro Leopoldo, Holy Roman Emperor and Grand Duke of Tuscany from 1765 to 1790.