London North Centre (formerly known as London—Adelaide) is an electoral district in the province of Ontario, Canada, that has been represented in the Canadian House of Commons since 1997, and in the Legislative Assembly of Ontario since 1951.
Its population in 2006 was 115,250 and the average family income was $71,995.
| Population | 107,672 |
| Electors | 91,328 |
| Area (km²) | 64 |
| Population density (people per km²) | 1682.4 |
Ethnic groups: 86.8% White, 2.0% Chinese, 1.9% Black, 1.8% South Asian, 1.7% Aboriginal, 1.2% Southeast Asian, 1.1% Arab
Languages: 79.8% English, 1.4% French, 18.0% Other
Religions: 38.5% Protestant, 27.3% Catholic, 22.6% No religion, 3.0% Muslim, 2.8% Other Christian, 2.2% Christian Orthodox, 1.1% Jewish
Average income: $31,174
| Parliament | Years | Member | Party | |
|---|---|---|---|---|
| London East and London—Middlesex prior to 1996 | ||||
| 36th | 1997-2000 | Joe Fontana | Liberal | |
| 37th | 2000-2004 | |||
| 38th | 2004-2006 | |||
| 39th | 2006 | |||
| 2006- | Glen Pearson | Liberal | ||
Long-time MP Joe Fontana resigned from the seat in 2006 in order to run in the London municipal election as a candidate for mayor, requiring a by-election to be held.
The election was called on October 22, 2006 with polling day falling on November 27. 
The election result presents a major breakthrough for the Green Party, tripling its previous showing in the general election and placing slightly ahead of the candidate of the governing Conservative party. The vote for party leader Elizabeth May was over five times the 4.5% national popular vote in the preceding federal election.
^ Conservative change is from combined Canadian Alliance and Progressive Conservative totals.
^ Canadian Alliance change is from Reform
London North has elected the following members of the Ontario Legislature: