Roderick (Rory) MacDonald (Scottish Gaelic: Ruaraidh Dòmhnallach /ruərɪ dɔ̃ːnəlˠəx/) is the bassist of the Scottish Celtic rock band Runrig, as well as their primary songwriter with his younger brother, Calum Macdonald. Generally, Rory writes the melodies, and Calum the lyrics. After former lead singer Donnie Munro left the band in 1997, Rory took lead vocal duties on songs in the band's catalogue written in the Scottish Gaelic language, as the band's new lead singer, Bruce Guthro, was not a Gaelic speaker. In the mid to the late 1960s, Macdonald was a part of a band called The Skyvers.