Harold Mark Carter, Baron Carter of Haslemere, CB (born 12 September 1958)[1] is a British lawyer, life peer and crossbench member of the House of Lords.

He returned to the Home Office as deputy legal advisor in 2009.

[4] In 2019, he was nominated for a life peerage in the Prime Minister's Resignation Honours and was created Baron Carter of Haslemere, of Haslemere in the County of Surrey, on 30 October.

[5][6][7] He was one of 11 peers who had not yet taken an oath to King Charles III by September 2023: peers are required to swear or affirm the oath of allegiance to the new monarch and cannot sit or vote in the House of Lords until they have done so.

[8] He stated that he refrained from involvement in the Lords "to avoid any conflict of interest whilst working as a crown [civil] servant".