Marylebone was a parliamentary constituency in Middlesex, England from 1832 to 1885. The parliamentary borough formed part of the built up area of London, and returned two members to the House of Commons of the UK Parliament and was created under the Reform Act 1832. It was abolished by the Redistribution of Seats Act, 1885 which split it into 8 seats.

Marylebone was one of five parliamentary boroughs in the metropolitan area of London enfranchised in 1832.^[1] The listed civil parishes (succeeding the parish vestries in all civil, secular matters) are respectively tinted pink, green and yellow on the inset map. The constituency was defined as consisting of three civil parishes in Middlesex:^[2]

• Saint Marylebone
• Paddington
• Saint Pancras

The commissioners appointed to fix its boundaries recommended that the part of Saint Pancras north of the Regent's Canal should be omitted thus remain in the parliamentary county of Middlesex being a still a largely rural projection.^[3] The inhabitants of St. Pancras, however, petitioned parliament for the inclusion of the entire parish, and this was accepted.^[4]

In 1885 the entity was split into eight new single-member divisions:

• Marylebone East
• Marylebone West
• Paddington North
• Paddington South
• St. Pancras East
• St. Pancras North
• St. Pancras South
• St. Pancras West.

Notes

• ¹ Election of Whalley in 1837 declared void on petition, as he could not prove his eligibility.
• ² A peer of Ireland.

Turnout, in multi-member elections, is estimated by dividing the number of votes by two. To the extent that electors did not use both their votes, the figure given will be an underestimate.

Change is calculated for individual candidates, when a party had more than one candidate in an election or the previous one. When a party had only one candidate in an election and the previous one change is calculated for the party vote.