- Source: A123
A123 or variation may refer to:
A123 Systems, battery manufacturer
RFA Olna (A123), Royal Fleet Auxiliary Ol-class fast fleet tanker of the British Royal Navy
highway 123, see List of highways numbered 123
OMB Circular A-123, a US Office of Management and Budget government circular that defines the management responsibilities for internal controls in Federal agencies.
See also
123 (disambiguation)