Robert Cunningham Graham Speirs or Spiers FRSE (1797–1847) was a 19th-century Scottish advocate and prison reformer. In later life he is largely referred to simply as Graham Speirs. He held the offices of Sheriff of Elgin and Moray from 1835 to 1840 and subsequently was Sheriff of Midlothian from 1840 until his death in 1847. He joined the Free Church at the Disruption of 1843. He was then involved in the Sites Committee trying to persuade landowners to allow the denomination to build churches and schools on their land.