| Election Name: | 1910 Tower Hamlets St George |
| Type: | presidential |
| Country: | United Kingdom |
| Previous Election: | Tower Hamlets St George (UK Parliament constituency)#Elections in the 1910s |
| Previous Year: | 1910 |
| Next Election: | Tower Hamlets St George (UK Parliament constituency)#Elections in the 1910s |
| Next Year: | 1910 |
| Election Date: | 1 March 1910 |
| Candidate1: | Benn |
| Party1: | Liberal Party (UK) |
| Popular Vote1: | 1,598 |
| Percentage1: | 59.5% |
| Candidate2: | Simmons |
| Party2: | Conservative Party (UK) |
| Popular Vote2: | 1,089 |
| Percentage2: | 40.5% |
| Map Size: | 250px |
| MP | |
| Posttitle: | Subsequent MP |
| Before Election: | Wedgwood Benn |
| Before Party: | Liberal Party (UK) |
| After Election: | Wedgwood Benn |
| After Party: | Liberal Party (UK) |
The 1910 Tower Hamlets St George by-election was a Parliamentary by-election. It returned one Member of Parliament (MP) to the House of Commons of the United Kingdom, elected by the first past the post voting system. It was held on 1 March 1910.
The by-election was caused due to the incumbent Liberal MP, William Wedgwood Benn, becoming a Commissioner of the Treasury, requiring him to seek re-election.
The seat had been Liberal since Benn gained it in 1906. Benn easily held the seat at the January 1910 election, with a reduced majority;
Polling Day was fixed for the 1 March 1910.
The Liberals held the seat and managed a slightly increased majority;
Benn was re-elected at the general election 9 months later.