Hyacinth Bernard Wenceslaus Morgan (11 September 1885 – 7 May 1956) was a Labour Party politician in the United Kingdom.

He was born, of Irish descent, in Grenada, West Indies and came to the United Kingdom to study medicine at Glasgow University in 1904.

While at University he was active in the Fabian Society and founded the students' Irish Nationalist Club.

After qualifying, he worked in a number of Glasgow mental hospitals and then served as a doctor in the Royal Army Medical Corps during the First World War in both France and England.

Morgan contested the South London constituency of Camberwell North West at the 1922 general election, but lost by a wide margin to the National Liberal MP Thomas James Macnamara.