The 1947 Jarrow by-election was held on 7 May 1947. The byelection was held due to the death of the incumbent Labour MP, Ellen Wilkinson. It was won by the Labour candidate Ernest Fernyhough.[1][2]
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Ernest Fernyhough | 20,694 | 59.3 | -6.7 | |
| Conservative | William Scott | 13,078 | 37.5 | New | |
| Independent Labour | W. Moody | 1,114 | 3.2 | New | |
| Majority | 7,616 | 21.8 | -10.3 | ||
| Turnout | 34,886 | ||||
| Labour hold | Swing | N/A | |||