| Election Name: | March 1874 Galway Borough by-election |
| Percentage1: | 61.8% |
| Registered: | 1,444 |
| After Party: | Home Rule League |
| After Election: | Frank Hugh O'Donnell |
| Before Party: | Home Rule League |
| Before Election: | William St Lawrence |
| MP | |
| Percentage2: | 38.2% |
| Popular Vote2: | 358 |
| Party2: | Liberal Party (UK) |
| Candidate2: | Pierce Joyce |
| Popular Vote1: | 579 |
| Country: | United Kingdom |
| Party1: | Home Rule League |
| Candidate1: | Frank Hugh O'Donnell |
| Seats For Election: | Constituency of Galway Borough |
| Next Election: | June 1874 Galway Borough by-election |
| Election Date: | 20 March 1874 |
| Previous Year: | 1874 (GE) |
| Previous Election: | 1874 United Kingdom general election |
| Ongoing: | no |
| Type: | parliamentary |
| Next Year: | June 1874 |
| Turnout: | 64.9% (3.5%) |
The March 1874 Galway Borough by-election was held on 20 March 1874. The byelection was held due to the succession to a peerage of the incumbent Home Rule MP, William St Lawrence. It was won by the Home Rule candidate Frank Hugh O'Donnell. An election petition alleged bribery and intimidation on the part of O'Donnell's supporters, and his election was declared void under the Parliamentary Elections Act 1868. This resulted in another by-election in June.