Karen Johnston has been appointed as deputy pensions ombudsman and deputy pensions protection fund ombudsman.
The former strategy lawyer at The Pensions Regulator will take over from Jane Irvine in July.
Pensions minister Steve Webb, who made the appointment, said: “Ms Johnston will prove to be a first-rate appointment to this important role, and will bring with her a wealth of valuable experience and intrinsic knowledge of the pensions’ industry.”
Ms Johnston was also a senior consumer lawyer at the Office of Fair Trading and a barrister at the Independent Bar.
Incoming pensions ombudsman Anthony Arter, who was appointed in February, will be taking over from Tony King on 23 May.