Oliver John Ruthven is a conductor and continuo player based in London. He began his musical career as a chorister at Westminster Abbey and went on from there to Tonbridge School and the University of Manchester. He graduated from Manchester in 2006 with a 1st Class Honours Degree in Music.

He is in much demand as a continuo player, working as harpsichordist and organist for the English Baroque Soloists under Gardiner, and as a founder member of Musica Poetica. He has also played with Stile Antico, The Academy of Ancient Music, The Hanover Band, His Majesty's Sackbuts & Cornets, the English Cornet & Sackbut Ensemble, and Solomon's Knot.