Sir Sebag Shaw PC (1902–1982) was a British barrister and judge.
Shaw served from 1958 to 1968 as Honorary Recorder of Ipswich, succeeding Sir Stephen Gerald Howard, QC, MP (1947–1958). Shaw was succeeded by the Hon. William McLaren Howard, QC.
In 1955 Shaw was junior counsel to Aubrey Melford Stevenson for the defence in the trial of Ruth Ellis; she was the last woman hanged in the United Kingdom.
He was appointed a High Court judge and promoted to be a Lord Justice of Appeal in 1975. He chaired the JUSTICE Annual members conference in 1973.