Yes.  You need a PPL(G) to fly a Gyrocopter.  This is a different licence from a PPL(A) - which is for aeroplanes; a PPL(H) - which is for helicopters or a PPL(B) which is for balloons or an NPPL (Microlights) which is for microlights.

If you already hold another licence then you do not have to do the full training course in order to obtain a PPL(G).  See our section on Training for full details.