The Arco de San Lorenzo or Arch of San Lorenzo is an historic medieval arch spanning an old-city street located in Jaen in Andalucia.

It is located at the crossroads of the streets Almendros Aguilar and Madre de Dios or Mother of God. It forms part of the former Church of San Lorenzo, which was built between the 13th and 14th centuries and its interior houses such treasures as Moorish tilework and paneling, as well as a small chapel. It was declared a Bien de Interés Cultural in 1877.