| Middlesex | |
| Province: | Ontario |
| Prov-Status: | defunct |
| Prov-Created: | 1975 |
| Prov-Abolished: | 1996 |
| Prov-Election-First: | 1975 |
| Prov-Election-Last: | 1995 |
Middlesex was a provincial riding in Ontario, Canada, that was created for the 1975 election. It was abolished prior to the 1999 election. It was redistributed into the ridings of Elgin—Middlesex—London, Lambton—Kent—Middlesex, London—Fanshawe, London North Centre, London West and Perth—Middlesex.
In 1975, the boundaries of the riding included the townships of Caradoc, Delaware, Ekrid, Lobo, London, Metcalfe, Mosa, North Dorchester, Westminster and West Nissouri. It also included the town of Strathroy and the villages of Glencoe, Newbury and Wardsville.[1]
In 1986, the boundaries were changed as follows: it was realigned to include Indian reserves No. 41 and 42 and most of the county of Middlesex except for part of the city of London that lay west of Highbury Road, Huron Street, and Clarke Road.[2]
In 1996, the provincial government reduced the number of ridings in the province from 130 to 103. They also directed the new ridings to correspond to the boundaries of the existing federal ridings.[3] 18% of the riding was redistributed into Elgin—Middlesex—London,[4] 34% to Lambton—Kent—Middlesex,[5] 21% to London—Fanshawe,[6] 1% to London North Centre,[7] a negligible amount to London West and 25% to Perth—Middlesex.[8]