The neutrino experiment results suggest that neutrinos have finite masses and violate lepton flavour. In supersymmetric extensions of the Standard Model, the Yukawa and/or mass terms of the heavy neutrinos can generate radiatively the lepton flavour violating slepton masses. These new sources of lepton flavour violation may enhance the rates of charged lepton flavour violating processes, like \mu \to e\gamma . At future colliders they can also generate distinct final states, e.g. \tau \mu + jets + E /}_T. In this paper the supersymmetric lepton flavour violating processes and their signals at future e⁺e^- colliders are discussed.

PACS numbers: 12.60.Jv, 14.80.Ly