| Election Name: | 1951 Ormskirk by-election |
| Percentage1: | 71.47% |
| Swing1: | 5.20% |
| After Party: | Conservative Party (UK) |
| After Election: | Arthur Salter |
| Before Party: | Conservative Party (UK) |
| Before Election: | Ronald Cross |
| MP | |
| Percentage2: | 26.50% |
| Popular Vote2: | 8,969 |
| Party2: | Labour Party (UK) |
| Candidate2: | H. A. Kelly |
| Popular Vote1: | 24,190 |
| Country: | United Kingdom |
| Party1: | Conservative Party (UK) |
| Candidate1: | Arthur Salter |
| Seats For Election: | Constituency of Ormskirk |
| Next Election: | 1951 United Kingdom general election |
| Election Date: | 5 April 1951 |
| Previous Year: | 1950 |
| Previous Election: | 1950 United Kingdom general election |
| Ongoing: | no |
| Type: | parliamentary |
| Next Year: | 1951 (GE) |
| Swing2: | 7.23% |
The Ormskirk by-election of 5 April 1951 was held after the appointment of Conservative MP Ronald Cross as Governor of Tasmania.
The seat was safe, having been won at the 1950 United Kingdom general election by over 14,000 votes[1]