| Election Name: | 1933 Hitchin by-election |
| Type: | By-election |
| Country: | United Kingdom |
| Seats For Election: | The Hitchin seat in the House of Commons. Triggered by death of incumbent |
| Ongoing: | no |
| Previous Election: | 1931 United Kingdom general election |
| Previous Year: | 1931 |
| Next Election: | 1935 United Kingdom general election |
| Next Year: | 1935 |
| Candidate1: | Arnold Wilson |
| Image1: | File:Sir Arnold Wilson.jpg |
| Party1: | Conservative Party (UK) |
| Last Election1: | 75.7 |
| Popular Vote1: | 14,569 |
| Percentage1: | 58.4% |
| Candidate2: | William Bennett |
| Party2: | Labour Party (UK) |
| Last Election2: | 24.3 |
| Popular Vote2: | 10,362 |
| Percentage2: | 41.6% |
| MP | |
| Posttitle: | Subsequent MP |
| Before Election: | Antony Bulwer-Lytton |
| Before Party: | Conservative Party (UK) |
| After Election: | Arnold Wilson |
| After Party: | Conservative Party (UK) |
The 1933 Hitchin by-election was held on 8 June 1933 after the incumbent Conservative MP, Antony Bulwer-Lytton died in a plane accident. It was won by the Conservative candidate Arnold Wilson.