Runic inscription U 1113 is the Rundata catalog number for a fragmentary Viking Age runestone that is located at Häggeby, which is about 1 kilometer west of Björklinge, Uppland, Sweden. The inscription is classified, based on the remaining evidence, as being carved in runestone style Pr4, also known as Urnes style. This runestone style is characterized by slim and stylized animals that are interwoven into tight patterns.