John Russell (born London, 1954) is an acoustic guitarist who has worked exclusively in the field of free improvisation since the 1970s. He has been active consistently during that time as a promoter of concerts of freely improvised music in London, providing hundreds of playing opportunities for both local and international musicians. Russell has appeared on more than 50 published recordings. He has been described as "…an acoustic guitar loyalist who always manages to combine a classical delicacy with the fire of rock".