Lee Sullivan was named head of group pensions at Santander UK, a spokeswoman said.
Mr. Sullivan replaced Stuart Dunn, who recently left the bank to pursue a new opportunity, she said.
Mr. Sullivan is responsible for running the trustee executive function of Santander UK's Pension Scheme, working closely with the chairman of the trustee board, Paul Trickett.
Mr. Sullivan joined Santander UK from BNP Paribas where he spent over six years as group pensions manager. Details of his replacement could not be learned.
