| Election Name: | 2010 Westminster City Council election |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 2006 Westminster City Council election |
| Previous Year: | 2006 |
| Next Election: | 2014 Westminster City Council election |
| Next Year: | 2014 |
| Seats For Election: | All 60 council seats of the Westminster City Council |
| Majority Seats: | 31 |
| Election Date: | 6 May 2010 |
| Council control | |
| Posttitle: | Subsequent council control |
| Before Party: | Conservative Party (UK) |
| After Party: | Conservative Party (UK) |
Elections for the City of Westminster London borough were held on 6 May 2010. The 2010 general election and other local elections took place on the same day.
In London council elections the entire council is elected every four years, as opposed to some local elections, in which one councillor is elected every year for three of the four years.
The Conservatives retained control of the council, and all wards continued with the same party representation as at the previous borough election in 2006. Labour won back the Church Street seat they had lost to the Conservatives at a 2008 by-election.
The percentage of vote share and majority are based on the average for each party's votes in each ward. The raw majority number is the margin of votes between the lowest-placed winning party candidate and the opposition party's highest-placed losing candidate. Starred candidates are the incumbents.