David I or Dauíd mac Maíl Choluim (Modern Gaelic: Daibhidh I mac [Mhaoil] Chaluim; c. 1084 – 24 May 1153) was a 12th century ruler and saint who was Prince of the Cumbrians from 1113 to 1124 and King of Scotland from 1124 to 1153. The youngest son of King Malcolm III and Queen Margaret, David spent most of his childhood in Scotland but was exiled to England temporarily in 1093. Perhaps after 1100, he became a dependent at the court of King Henry I of England, by whom he was influenced.
When David's brother Alexander I died in 1124, David chose, with the backing of Henry I, to take the Kingdom of Alba (Scotland) for himself. He was forced to engage in warfare against his rival and nephew, Máel Coluim mac Alaxandair.