Rune inscription U 1132, or the Gimo stone, is a rune stone in Gimo, Skäfthammar parish and Östhammar municipality in Uppland. The rune stone now stands at Gimo damm about two kilometers northwest of Skäfthammar's church.

During a survey by Johannes Bureus in 1594, the stone was found by a bridge over Gimån, the stream between Gimo dam and Olandsån and about 500 meters north of Skäfthammar's church. In the 19th century, the stone was placed in Gimo's cemetery gate, but was later moved to its current location at Gimo Damm.

The size of the stone is 2.4 m in height and 0.8 m in width at the base, as well as 1.5 m wide at the top, 0.35 m thick at the northwestern edge and 0.15 m thick at the southern edge. The material is gray, coarse-grained granite. The carver is Ömund.

The stone is erected after the parents by their three sons. The name Liutr is unusual and is further found only on U 1016. Þrotti is coated on runestones Sö 115, Sö 200, U 17 and U 485. oþuiþr probably renders a male name Auðviðr; the diphthong Au is single-signed in both names oþuiþr' and oþmontr - Auðmundr, which can be compared to the spelling ooþbiarn for Auðbiorn ' on U 1062. The name Auðviðr is very unusual, it is not recorded in the runic inscriptions and was rare in the Middle Ages. The father's name was Biörn. The mother's name in accusative form is Fasthæiði. The female name Fasthœiðr is only known from U 1132, but names compounded with the adjective stem fast- are very common.

• Gimo hembygdsförening
• "Uppland Runestone - U 1132". Kulturbilder.dk. 6 June 2013. Archived from the original on 2013-07-01.