Sir Stephen Shepherd Allen KBE CMG DSO* VD (2 August 1882 – 4 November 1964) was a New Zealand lawyer, farmer, colonial administrator, local-body politician, and mayor of Morrinsville.

He became mayor of the Borough of Morrinsville in 1927 but resigned one year later following an appointment as administrator of the colony of Western Samoa.

[1] Allen was appointed a Knight Commander of the Order of the British Empire (KBE) in the 1933 King's Birthday Honours.

[5] Allen served in the Second World War as a staff captain of the British Army and as a military secretary to the New Zealand Expeditionary Force.

[3] On 4 November 1964, Allen had a heart attack while driving near Maramarua, and both he and his housekeeper, Elma Jessie Brunton, died in the resulting crash.