Octavius Vaughan Morgan (1837 – 26 February 1896) was a Welsh-born Liberal Party politician who sat in the House of Commons from 1885 to 1892.
The eighth son of Thomas Morgan of Pipton, near Glasbury, Breconshire (1796–1847), he was educated at Priory School, Abergavenny.
However, his right to sit was questioned in 1886, as Morgan Crucible Co. held government contracts; from which, however, he had disassociated himself before his nomination.
Morgan took the Manor of Northstead to resign from Parliament until the question was settled, but was returned unopposed at the ensuing by-election in February 1886.
He held the seat at the general election in July 1886, and sat for Battersea until 1892.