Two runic inscriptions have been found on Lidingö. The latest, listed in Rundata as the Uppland Runic Inscription Fv1986 84, was found in 1984 under a 10 cm thick layer of soil and moss in an uninhabited region. The inscription is from the Viking Age, around 800–1050 AD. The inscription has been translated as:
The figures show large snakes and on top, a Maltese cross, a typical motif for the late Viking Age rune stones.
Approximately 300 to 400 years after the carving of the runes, the inhabitants of Lidingö had established small farms. Lidingö is first mentioned in writing in 1328, in the will of Jedvard Filipsson, in the sentence curiam in Lydhingø meaning a "Lidingö farm".
Bo Jonsson (Grip) (early 1330s – 20 August 1386) bought the entire island between 1376 and 1381. In approximately 1480, the island was taken over by the Banér family from Djursholm. On 29 August 1774, Johan Gabriel Banér (1733–1811) also from Djursholm, sold the entire island and the land was divided into 25 farms.
In the east part of Lidingö, the Långängen-Elfvik nature reserve, which includes 125 acres (0.51 km2) of open farmland and most of the forest land on Elfvik, has, preserved within its boundaries, one of the largest old farms, the Elfviks farm. Most of the original houses, built from the end of the 18th century to mid‑19th century, have been saved and restored. The farm is still active with beef cattle, sheep, and horses and is run by Lidingö Municipality.
The first church was built in 1623.
The IBM educational center for northern Europe, was built close to the Elfvik farm in the early 1960s. The centre was later converted to a hotel.
The following sports clubs are located in Lidingö:
"Tätorternas landareal, folkmängd och invånare per km2 2005 och 2010" (in Swedish). Statistics Sweden. 14 December 2011. Archived from the original on 27 January 2012. Retrieved 10 January 2012. http://www.scb.se/Statistik/MI/MI0810/2010A01/Tatorternami0810tab1_4.xls ↩