Calum Stewart (born 1982) is a Scottish musician and composer who is a uilleann piper, low whistle and wooden flute player, who performs primarily traditional Scottish, Irish and Breton music.

Brought up in a musical household, Calum Stewart's playing style is rooted in the traditional music of his native northern Scotland.

His distinct musical voice has been developed through collaborations within the English, Scottish, Irish, Breton and Scandinavian traditions.

In demand as a concert and recording artist, Calum has recorded and performed with The London Philharmonic Orchestra,[1] The London Symphony Orchestra and Nitin Sawhney.

[2] Calum Stewart regularly performs with Breton guitarist Heikki Bourgault.