OFGEM: Office of Gas and Electricity Markets: OFGEM: Office of Gas and Electricity Markets
OFIRR: Office of the International Rail Regulator: OFIRR: Office of the International Rail Regulator
OFSTED: Office for Standards in Education: OFSTED: Office for Standards in Education
OFSTED: Office for Standards in Education: OFSTED: Office for Standards in Education
OFTEL: Office of Telecommunications: OFTEL: Office of Telecommunications
OFWAT: Office of Water Services: OFWAT: Office of Water Services
ONS: Office for National Statistics: ONS: Office for National Statistics
OPG: Office of the Paymaster General: OPG: Office of the Paymaster General
Ordnance Survey: Ordnance Survey
ORR: Office of the Rail Regulator: ORR: Office of the Rail Regulator